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Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 1 Biology and You
Skills Worksheet
Vocabulary Review
Biology and You
Circle the term that best completes each sentence.
1. (Homeostasis, Heredity, or Skepticism) is a questioning attitude.
2. (Hypothesis, Metabolism, or Homeostasis) is a possible explanation that can
be tested by experimenting.
3. A (theory, variable, or guess) explains a wide range of observations.
4. When you make notes about objects or events by using your senses, you are
making (theories, observations, or cells).
5. A (cell, variable, or hypothesis) is the smallest unit able to have life.
6. The sum of all chemical reactions that happen in an organism is called (theory,
metabolism, or homeostasis).
7. (Variable, SI, or Heredity) is the passing of traits from parent to offspring.
8. The change in inherited characteristics of organisms over generations is known
as (observations, evolution, or cell).
Using the word bank below, fill in each blank provided.
biology experiment reproduction
control group homeostasis SI
9. The act of testing a hypothesis is called a(n) _______________________.
10. No experimental treatment is done to the _______________________
_______________________during an experiment.
11. Scientists worldwide use _______________________ to measure.
12. The study of living things is called _______________________.
13. Keeping a stable internal environment is called _______________________.
14. When organisms produce more of their own kind, it is called
_______________________.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 5 Applications of Biology
Skills Worksheet
Vocabulary Review
Applications of Biology
Circle the term that best completes each sentence.
1. A way to prevent a disease is to give (genetics, biometrics, or vaccinations).
2. The study of data to determine identity of an individual is called
(ecology, biometrics, or genetics).
3. (Genetic engineering, Ecology, or Biometrics) is used to modify a cell’s genes
for industrial use.
4. All of the genes in your body make up your (ecology, genome, or vaccination).
5. The study of how an organism is affected by its surroundings is known as
(epidemiology, biometrics, or environmental science).
Match the words on the left with the statements on the right.
_____ 6. genetics
_____ 7. ecology
_____ 8. epidemiology
_____ 9. environmental science
Using the word bank below, fill in each blank provided.
biometrics genetics genome
10. The way traits are passed from parents to offspring is the subject of
_______________________.
11. Fingerprinting and iris scans provide information that is analyzed through
_______________________.
12. All the hereditary information about one kind of organism is called its
_______________________.
a. studies interactions between two organisms
b. study of heredity
c. studies the air, water, and land around organisms
d. science that helps prevent outbreaks of disease
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 6 Applications of Biology
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
ecology epidemiology vaccination
13. A way to make someone immune to a disease is to give a
_______________________.
14. The study of the relationships between organisms is called
_______________________.
15. The study of the spread of disease is called _______________________.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 9 Chemistry of Life
Skills Worksheet
Vocabulary Review
Chemistry of Life Match the words on the left with the statements on the right.
_____ 1. ion
_____ 2. atom
_____ 3. compound
_____ 4. molecule
Match the words on the left with the statements on the right.
_____ 5. cohesion
_____ 6. adhesion
_____ 7. buffer
_____ 8. solution
Match the words on the left with the statements on the right.
_____ 9. ATP
_____ 10. carbohydrate
_____ 11. protein
_____ 12. lipid
_____ 13. amino acid
_____ 14. nucleic acid
a. smallest unit of matter that cannot be
broken down by chemical means
b. group of atoms held together by
covalent bonds
c. atom or group of atoms that has lost or
gained one or more electrons
d. substance made of the joined atoms of
two or more different elements
a. attraction between particles of different
substances
b. one substance evenly distributed in
another
c. attraction between particles of the same
substance
d. prevents pH changes
a. long chain of amino acids
b. biomolecule that repels water
c. nucleotide that carries energy
d. organic compound made up of carbon,
hydrogen, and oxygen; used by living
things as an energy source
e. contains chains of nucleotides
f. building block of a protein
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 10 Chemistry of Life
Vocabulary Review continued
Match the words on the left with the statements on the right.
_____ 15. energy
_____ 16. substrate
_____ 17. active site
_____ 18. enzyme
Match the words on the left with the statements on the right.
_____ 19. reactant
_____ 20. DNA
_____ 21. RNA
_____ 22. product
_____ 23. nucleotide
Match the words on the left with the statements on the right.
_____ 24. acid
_____ 25. base
_____ 26. pH
_____ 27. valence electrons
_____ 28. element
_____ 29. activation energy
a. substance on which an enzyme works
b. ability to move or change matter
c. location on an enzyme that binds to a
substrate
d. substance that speeds up a biochemical
reaction
a. nucleic acid that contains genetic
information
b. substance that forms in a chemical reaction
c. nucleic acid that plays a role in protein
synthesis
d. substance that is changed in a chemical
reaction
e. contains a sugar, base, and phosphate
group
a. measure of how acidic or basic a solution
is
b. compound that forms extra hydronium
ions when dissolved in water
c. compound that forms extra hydroxide
ions when dissolved in water
d. substance made of atoms that have the
same number of protons
e. energy needed to start a chemical
reaction
f. are found in the outermost shell of an
atom
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 15 Ecosystems
Skills Worksheet
Vocabulary Review
Ecosystems
Using the word bank below, fill in each blank provided.
biodiversity community habitat
climate ecosystem succession
1. The number of species living within an ecosystem is its
__________________.
2. The place where a particular population of a species lives is called its
_______________________.
3. A(n) _______________________ is a community and all the physical parts of
its habitat, such as the soil, water, and weather.
4. The average weather conditions over a long period of time is an area’s
_______________________.
5. A regular progression of species replacement is called __________________.
6. All the living things that interact together in an area is a(n)
_______________________.
Using the word bank below, fill in each blank provided.
carbon cycle nitrogen cycle phosphorus cycle respiration
7. Oxygen is used and carbon dioxide is returned to the atmosphere in the
process of ___________________.
8. Nitrogen is made available for use by living things in the
___________________ ___________________.
9. Photosynthesis, respiration, and combustion are parts of the _______________
___________________.
10. An animal eating plants is an important part of the ___________________
___________________.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 16 Ecosystems
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
biome decomposer producer
consumer energy pyramid trophic level
11. A(n) _______________________ is determined by climate and latitude.
12. An organism in a community that captures energy from the sun is a
_______________________.
13. An organism that eats plants and animals is a(n) _______________________.
14. A level in a diagram based on an organism’s source of energy is called a(n)
______________________ ______________________.
15. A triangular diagram that shows the amount of available energy at each level
is a(n) _______________________ ______________________.
16. A(n) _______________________ is an organism that breaks down dead
bodies and organic waste.
In the space provided, write T if the statement is true or F if it is false.
_____ 17. Organisms in an ecosystem that first gain (capture) energy are called
decomposers.
_____ 18. A triangular shaped model that uses blocks to represent the amount of energy in each trophic level is called an energy pyramid.
_____ 19. The process of combining nitrogen with hydrogen to form ammonia is part of
the phosphorus cycle.
_____ 20. Organisms that get energy by consuming plants or other organisms are called consumers.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 21 Populations and Communities
Skills Worksheet
Vocabulary Review
Populations and Communities
Match the words on the left with the statements on the right.
_____ 1. population
_____ 2. carrying capacity
_____ 3. predation
_____ 4. coevolution
_____ 5. parasitism
_____ 6. symbiosis
Match the words on the left with the statements on the right.
_____ 7. mutualism
_____ 8. commensalism
_____ 9. niche
_____ 10. fundamental niche
_____ 11. realized niche
_____ 12. competitive exclusion
a. the largest population that an environment can
support at any given time
b. when one species evolves in response to
another species
c. two or more species living together in a close,
long-term relationship
d. one organism feeds on and usually lives on or
in another larger organism
e. a group of organisms of the same species that
live in the same area and interbreed
f. the act of one organism feeding on another
a. a relationship in which both participating
species benefit
b. the entire range of conditions an organism is
potentially able to occupy
c. the role of a species in an ecosystem
d. the elimination of a competing species
e. the part of its fundamental niche that a
species occupies
f. a relationship in which one species benefits
and the other is neither harmed nor helped
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 22 Populations and Communities
Vocabulary Review continued
In the space provided, write the letter of the term that best completes each
statement.
_____ 13. The largest ecological niche where an organism or species can possibly survive is its
a. habitat. b. fundamental niche. c. community.
_____ 14. A relationship between two species in which both species benefit is called
a. predation. b. parasitic. c. mutualism.
_____ 15. A single species in an ecosystem that affects the survival of many other species is called a
a. parasite species. b. keystone species. c. predator.
Using the word bank below, fill in each blank provided.
carrying capacity parasitism realized niche
competitive exclusion predation symbiosis
16. When a shark eats a seal, ______________________ is taking place.
17. Mutualism and commensalism are two types of ______________________.
18. In the face of competition, an organism may occupy only part of its
fundamental niche. That part is called its ______________________
______________________.
19. A characteristic of ______________________ is that these organisms often do
not kill their prey because they depend on the prey for food and place to live.
20. The maximum population number that the environment can support at one
time is called ______________________.
21. The principle of ______________________ states that when two species are
competing, the one that competes better will eliminate the other species.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 27 The Environment
Skills Worksheet
Vocabulary Review
The Environment Using the word bank below, fill in each blank provided.
acid rain erosion
deforestation greenhouse effect
1. Wind and rain can wash away the soil in a process called
_______________________.
2. Precipitation that has an unusually high amount of sulfuric acid or nitric acid is
called _______________________ _______________________.
3. When greenhouse gases warm the atmosphere, it is known as the
_______________________ _______________________.
4. When trees are cut down for timber or farmland, _______________________
may result.
Match the words on the left with the statements on the right.
_____ 5. fossil fuel
_____ 6. biodiversity
_____ 7. recycling
_____ 8. ecotourism
In the space provided, write the letter of the term or phrase that best completes
each sentence or answers each question.
_____ 9. A gradual increase in the average temperatures on Earth is known as
a. the greenhouse effect.
b. the ozone hole.
c. global warming.
_____ 10. The death of every member of a species is called
a. extinction. b. endangerment. c. biodiversity.
a. the process of reusing things instead of using
more resources
b. a way to educate people about the environment
and support conservation
c. the variety of organisms in a given area
d. a nonrenewable energy source formed from the
remains of organisms
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 31 Cell Structure
Skills Worksheet
Vocabulary Review
Cell Structure Using the word bank below, fill in the blanks with letters of the terms being
described.
a. cell membrane c. nucleus
b. cytoplasm d. ribosome
_____ 1. barrier between the outside environment and the inside of a cell
_____ 2. cell structure on which proteins are made
_____ 3. structure that contains a cell’s DNA
_____ 4. includes the fluid and structures inside a cell
Using the word bank below, fill in each blank provided.
eukaryote organelle prokaryote
5. One of many structures that carry out specific activities in a cell is a(n)
_______________________.
6. A single-celled organism that does not have a nucleus is a(n)
_______________________.
7. An organism made of one or more cells that have a nucleus is a(n)
_______________________.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 32 Cell Structure
Vocabulary Review continued
Using the word bank below, fill in the blanks with letters of the terms being described.
a. chloroplast c. Golgi apparatus e. vacuole
b. endoplasmic reticulum d. mitochondrion f. vesicle
_____ 8. small sac formed by a membrane
_____ 9. membranes that move proteins and other substances through the cell
_____ 10. sacs that package and distribute proteins
_____ 11. sac that stores water and may contain ions, nutrients, and wastes
_____ 12. organelle that uses light energy to make sugar
_____ 13. organelle that uses energy from organic compounds to make ATP
Circle the term that best completes each sentence.
14. A long, threadlike structure that moves an organism is a (flagellum, vacuole,
or chloroplast).
15. A (vesicle, ribosome, or tissue) is a group of similar cells that have the same
function.
16. An (organ, organelle, or endoplasmic reticulum) is made of different tissues and
has a specific function.
17. A group of organs that work together make up an (organelle, organ system,
or observation).
18. A single-celled organism that lives connected to a group of identical organisms is
called a (colonial organism, ribosome, or Golgi apparatus).
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 37 Cells and Their Environment
Skills Worksheet
Vocabulary Review
Cells and Their Environment
Match the words on the left with the statements on the right.
_____ 1. phospholipid
_____ 2. concentration gradient
_____ 3. equilibrium
_____ 4. diffusion
Match the words on the left with the statements on the right.
_____ 5. osmosis
_____ 6. lipid bilayer
_____ 7. carrier protein
_____ 8. sodium-potassium pump
Match the words on the left with the statements on the right.
_____ 9. signal
_____ 10. receptor protein
_____ 11. second messenger
a. difference in the concentration of a substance across a space
b. made of a phosphate “head” and two fatty acid “tails”
c. movement of a substance from an area of high concentration to an area of lower concentration
d. concentration of a substance is equal throughout a space
a. double layer of phospholipids that form the cell membrane
b. transports substances across a cell membrane
c. diffusion of water through a selectively permeable membrane
d. carrier protein used in active transport
a. acts as a signal molecule within the cell
b. binds to a signal molecule, letting the cell respond to the signal molecule
c. produced by a signaling cell and detected by the target cell
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 41 Photosynthesis and Cellular Respiration
Skills Worksheet
Vocabulary Review
Photosynthesis and Cellular Respiration
In the space provided, match the words on the left with the statements on the right.
_____ 1. ATP
_____ 2. cellular respiration
_____ 3. pigment
_____ 4. photosynthesis
_____ 5. ATP synthase
Using the word bank below, fill in each blank provided.
Calvin cycle electron transport chain
chlorophyll thylakoid
6. ___________________________: The main pigment involved in
photosynthesis
7. ___________________________: Disc-shaped sacs inside chloroplasts where
the main reactions of photosynthesis take place
8. ___________________________: Excited electrons go down this series of
molecules on the inner membranes of some organelles, giving up their energy,
which gets used for ATP production.
9. ___________________________: The main way that photosynthesizing
organisms use carbon dioxide to make a sugar.
a. the process some organisms use to store energy from sunlight by making carbohydrates
b. substance with three phosphates that organisms use to temporarily store and then use energy
c. the process cells use to get energy from carbohydrates
d. an enzyme that helps cells make an “energy currency”
e. a substance that absorbs some colors of light and reflects other colors of light
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 42 Photosynthesis and Cellular Respiration
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
Aerobic fermentation Krebs cycle
anaerobic glycolysis
10. ___________________________: Describes a process that requires oxygen
11. ___________________________: Describes a process that does not require
oxygen
12. ___________________________: The process that breaks down glucose to
pyruvate and which produces a small amount of ATP
13. ___________________________: A series of chemical reactions that break
down pyruvate and produces electron carriers that enter an electron transport
chain
14. ___________________________: The process that recycles NAD+ without
the need for oxygen so that carbohydrates can continue to be broken down to
produce ATP
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 45 Cell Growth and Division
Skills Worksheet
Vocabulary Review
Cell Growth and Division
In the space provided, write the letter of the term that best completes each
sentence.
_____ 1. A segment of DNA that codes for RNA and protein is a
a. gene.
b. chromosome.
c. chromatid.
_____ 2. At the beginning of cell division, DNA and the proteins associated with
the DNA coil into a structure called a
a. gene.
b. chromatid.
c. centrosome.
_____ 3. The two chromatids of a chromosome are attached at a point called the a. centromere.
b. centrosome.
c. looped domain.
Match the words on the left with the statements on the right.
_____ 4. chromatin
_____ 5. nucleosome
_____ 6. histone
_____ 7. tumor
_____ 8. cancer
Circle the term that best completes each sentence.
9. DNA is organized and packaged into structures called (genes, chromosomes,
or centrosomes).
10. In eukaryotic cells, (chromosomes, centrosomes, or centrioles) are the
structures that move to the opposite sides of the cell to help direct movement
of the chromatids during cell division.
a. a type of protein that aids the packing of DNA
b. a group of diseases characterized by uncontrolled cell growth
c. material in a cell made of DNA and proteins
d. DNA molecule wrapped around a core of proteins
e. a mass of unhealthy cells that grow very quickly
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 46 Cell Growth and Division
Vocabulary Review continued
11. During cell division, chromatids attach to the (chromatin, centromere, or
spindle), which pulls the chromatids to opposite sides of the cell.
In the space provided, write the letter of the term or phrase that best completes
each sentence.
_____ 12. The repeated sequence of growth and division during the life of a cell is
called
a. the cell cycle.
b. cytokinesis.
c. mitosis.
_____ 13. The first three phases of the cell cycle are called
a. anaphase.
b. mitosis.
c. interphase.
_____ 14. The process during which the nucleus of a cell is divided into two nuclei is called
a. the cell cycle.
b. mitosis.
c. cytokinesis.
_____ 15. The process during cell division in which the cytoplasm divides is called
a. cytokinesis.
b. interphase.
c. mitosis.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 51 Meiosis and Sexual Reproduction
Skills Worksheet
Vocabulary Review
Meiosis and Sexual Reproduction
In the space provided, write the letter of the term or phrase that best completes
each sentence or best answers each question.
_____ 1. An organism’s reproductive cells, such as sperm, or egg cells are called
a. genes.
b. chromosomes.
c. gametes.
_____ 2. Chromosomes that are similar in size, shape, and have the same kinds
of genes are
a. diploid.
b. haploid.
c. homologous chromosomes.
_____ 3. When a cell contains two sets of chromosomes, it is said to be a. haploid.
b. binary.
c. diploid.
_____ 4. When a cell contains one set of chromosomes, it is said to be a. separated.
b. haploid.
c. diploid.
_____ 5. The cell that results from the fusion of gametes is called a(n)
a. autosome. b. zygote.
c. organism.
_____ 6. A female reproductive cell is called a(n)
a. ovum.
b. sperm.
c. sex chromosome.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 52 Meiosis and Sexual Reproduction
Vocabulary Review continued
In the space provided, write the letter of the term or phrase that best completes
each sentence or best answers each question.
_____ 7. A male reproductive cell is called a(n) a. ovum.
b. sperm.
c. sex chromosome.
_____ 8. The repeated sequence of events in the life of an organism including
growth and development until maturity is called
a. a life cycle. b. cytokinesis.
c. binary fission.
_____ 9. Which occurs during prophase I in meiosis?
a. DNA replication
b. crossing-over
c. cytokinesis
_____ 10. The process during which a diploid cell divides twice to become four
haploid cells is called
a. fertilization.
b. metaphase.
c. meiosis.
_____ 11. The random distribution of the pairs of genes on different chromosomes during meiosis is called
a. independent assortment.
b. fertilization.
c. variation.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 57 Mendel and Heredity
Skills Worksheet
Vocabulary Review
Mendel and Heredity
Match the words on the left with the statements on the right.
_____ 1. character
_____ 2. hybrid
_____ 3. trait
a. a form of a character
b. an inherited physical feature
c. the offspring of a genetic cross between parents with contrasting
traits
Match the words on the left with the statements on the right.
_____ 4. recessive
_____ 5. generation
_____ 6. homozygous
_____ 7. allele
a. a version of a gene
b. group of offspring produced by a
given set of parents
c. having two identical alleles of a gene
d. allele is not expressed in presence
of corresponding dominant allele
Match the words on the left with the statements on the right.
_____ 8. genotype
_____ 9. phenotype
_____ 10. dominant
_____ 11. heterozygous
a. detectable expression of a gene
b. an expressed allele by itself
c. set of alleles an individual has
d. alleles of a particular gene are
different
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 58 Mendel and Heredity
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
genetic disorder pedigree probability Punnett square
12. ___________________________ diagram that predicts the outcomes of a
genetic cross
13. ___________________________ an inherited disease or condition
14. ___________________________ the likelihood that a specific event will
occur
15. ___________________________ a family history that shows how a trait is
inherited
Using the word bank below, fill in each blank provided.
codominance linked polygenic character
16. ___________________________ genes that are inherited together
17. ___________________________ when several genes influence a character
18. ___________________________ two alleles are fully expressed at the same
time
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 63 DNA, RNA, and Proteins
Skills Worksheet
Vocabulary Review
DNA, RNA, and Proteins
Match the words on the left with the statements on the right.
_____ 1. DNA replication
_____ 2. DNA helicase
_____ 3. DNA polymerase
a. enzyme that unwinds the DNA helix
b. catalyzes the formation of DNA
c. the process of making a copy of DNA
Match the words on the left with the statements on the right.
_____ 4. gene
_____ 5. nucleotide
_____ 6. DNA
a. subunit of DNA containing a
phosphate, sugar, and a base
b. has a double helix
c. segment of DNA that codes for a
trait
Match the words on the left with the statements on the right.
_____ 7. RNA
_____ 8. codon
_____ 9. gene expression
a. a three-nucleotide sequence in DNA
b. nucleic acid that plays an
important role in building
proteins
c. the process of gene activation to produce specific traits
Using the word bank below, fill in each blank provided.
transcription translation purine pyrimidine
10. ___________________________ making RNA from DNA
11. ___________________________ thymine and cytosine
12. ___________________________ making a protein from RNA
13. ___________________________ adenine and guanine
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 67 Genes in Action
Skills Worksheet
Vocabulary Review
Genes in Action
Refer to the word bank to unscramble each term. Then fill in each blank provided.
exon mutation transcription factor
intron plasmid transposon
1. rrinacntsipot rfocta ________________________________________________
2. sanorpntso ______________________________________________________
3. smipdal _________________________________________________________
4. xeno____________________________________________________________
5. nrntoi ___________________________________________________________
6. utotianm_________________________________________________________
Using the word bank below, fill in each blank provided.
apoptosis exon intron
cell differentiation genome
_____________________ 7. cell specialization
_____________________ 8. non-coding section of DNA
_____________________ 9. all the DNA in a species
_____________________ 10. coding region of DNA
_____________________ 11. programmed cell death
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 68 Genes in Action
Vocabulary Review continued
Refer to the word bank to unscramble each term. Then fill in each blank provided.
domain operon
nondisjunction polyploidy
12. noaidm_________________________________________________________
13. loyyoipdlp _____________________________________________________
14. roponeo ________________________________________________________
15. unonisnjnoctind__________________________________________________
Using the word bank below, fill in each blank provided.
domain operon
mutation polyploidy
_____________________ 16. adjacent and related gene unit
_____________________ 17. change in genetic material
_____________________ 18. multiple sets of chromosomes
_____________________ 19. functional unit in protein
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 71 Gene Technologies and Human Applications
Skills Worksheet
Vocabulary Review
Gene Technologies and Human Applications
Refer to the word bank to unscramble each term. Then fill in each blank provided.
clone microarray restriction enzyme
genomics recombinant DNA stem cell
1. igosecnm ________________________________________________________
2. oceln ___________________________________________________________
3. smte lcle ________________________________________________________
4. brtnneacimo DAN _________________________________________________
5. rmrcaaroyi _______________________________________________________
6. ttiicrneosr meenyz _________________________________________________
Using the word bank below, fill in each blank provided.
DNA fingerprint genetic engineering restriction enzyme
electrophoresis polymerase chain reaction
_____________________ 7. a pattern of DNA banding that is unique
_____________________ 8. uses an electrical field inside a gel to separate molecules by their size and charge
_____________________ 9. binds to specific short sequences of DNA and then
cuts the DNA
_____________________ 10. the process of manipulating genes for practical purposes
_____________________ 11. a technique for making many copies of DNA
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 72 Gene Technologies and Human Applications
Vocabulary Review continued
Refer to the word bank to unscramble each term. Then fill in each blank provided.
bioinformatics genetic library
electrophoresis genome mapping
12. nboioimfratcis ___________________________________________________
13. ssierhpocretelo __________________________________________________
14. geonem npmpagi _________________________________________________
15. eegncit bilrray ___________________________________________________
Using the word bank below, fill in each blank provided.
clones DNA sequencing
DNA polymorphisms recombinant DNA
_____________________ 16. DNA from different sources that has been combined by genetic engineering
_____________________ 17. variations in DNA sequences
_____________________ 18. genetically identical organisms, cell, or pieces of genetic material
_____________________ 19. the process of determining the order of every
nucleotide in a DNA sequence
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 76 Evolutionary Theory
Skills Worksheet
Vocabulary Review
Evolutionary Theory
In the space provided, write the letter of the term or phrase that best completes
each statement.
_____ 1. The process in which organisms with traits well suited to an
environment are more likely to survive and to produce offspring is
a. origin of species.
b. genetic principles. c. natural selection.
_____ 2. In biology, the formation of species is called
a. speciation.
b. adaptation.
c. artificial selection.
_____ 3. The process by which species change over time is called a. homologous.
b. evolution.
c. speciation.
_____ 4. The process by which a species becomes better suited to its environment is
a. speciation.
b. adaptation.
c. extinction.
_____ 5. Structures that share a common ancestry are a. not related.
b. homologous.
c. analogous.
_____ 6. Selection done by humans is
a. natural selection.
b. artificial selection.
c. adaptation.
_____ 7. Remnants of organisms living in the past are a. gradualism.
b. fossils.
c. adaptations.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 81 Population Genetics and Speciation
Skills Worksheet
Vocabulary Review
Population Genetics and Speciation
Refer to the word bank to unscramble each term. Then fill in each blank provided.
genetic equilibrium population genetics subspecies
normal distribution reproductive isolation
1. tengice brilimuequi _______________________________________________
2. scubspesei ______________________________________________________
3. droptivecure tinosoila _____________________________________________
4. nopalopitu tengices _______________________________________________
5. lornam buittoindirs _______________________________________________
Using the word bank below, fill in each blank provided.
genetic equilibrium population genetics subspecies
normal distribution reproductive isolation
6. A population that is different from, but can interbreed with other populations
of the same species is called a ___________________________.
7. If you were to plot the height of everyone in your class on a graph, the values
would probably form a hill-shaped curve called a
___________________________ ___________________________.
8. The study of changes in the numbers and types of alleles in populations is
called ___________________________ ___________________________.
9. A population in which no genetic change is occurring is in a state of
___________________________ ___________________________.
10. A state in which two populations can no longer interbreed to produce future
offspring is called ___________________________
___________________________.
Name ______________________________ Class___________________Date__________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 82 Population Genetics and Speciation
Vocabulary Review continued
In the space provided, write the letter of the term or phrase that best completes
each sentence or best answers each question.
_____ 11. A normal distribution produces a graph with a a. hill-shaped curve.
b. a straight line.
c. a curve on one end.
_____ 12. A population that is in genetic equilibrium is no longer
a. growing.
b. breeding. c. changing.
_____ 13. Population genetics is the study of changes in the
a. biodiversity of an ecological community.
b. numbers and types of alleles in populations.
c. adaptive radiation of a species.
_____ 14. A subspecies is one that is different from another similar species, but the two species can still
a. interbreed.
b. compete.
c. look alike.
_____ 15. When two populations are no longer able to breed with one another or produce fertile offspring, they are in
a. genetic equilibrium.
b. reproductive isolation.
c. a normal distribution.
In the space provided, write the letter of the description that best matches each term.
_____ 16. genetic equilibrium
_____ 17. normal distribution
_____ 18. population genetics
_____ 19. reproductive isolation
_____ 20. subspecies
a. a species that has diverged from another
species, but can still interbreed with it
b. graph produces a hill-shaped curve
c. study of changes in population alleles
d. two populations can no longer
interbreed
e. the state of a population in which no genetic change occurs
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 85 Classification
Skills Worksheet
Vocabulary Review
Classification
In the space provided, write the letter of the term that best completes each
statement.
_____ 1. A method of analysis based on shared derived characters is
a. evolutionary systematics.
b. heredity.
c. cladistics.
_____ 2. The evolutionary history of a species is its
a. phylogeny.
b. kingdom.
c. heredity.
_____ 3. Similar species are combined into a(n) a. order.
b. genus.
c. family.
_____ 4. The science of naming and organizing organisms is a. evolution.
b. taxonomy.
c. kingdom.
_____ 5. The two-word system for naming organisms that was originated by
Linnaeus is
a. cladistics. b. evolutionary systematics.
c. binomial nomenclature.
Match the words on the left with the statements on the right.
_____ 6. archaea
_____ 7. bacteria
_____ 8. cladistics
_____ 9. eukaryote
_____10. taxonomy
a. cells have nucleus and other internal
compartments
b. the more modern way of using ancestry to group organisms
c. group of prokaryotes with strong exterior cell
walls and a unique genetic system
d. the science practiced by Linnaeus
e. group of prokaryotes that includes extremophiles
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 89 History of Life on Earth
Skills Worksheet
Vocabulary Review
History of Life on Earth
Circle the term that best completes each sentence.
1. The theory that explains how chloroplasts and mitochondria got to be part of
cells is called (cyanobacteria, microsphere, endosymbiosis).
2. The period of time determined for the decay of radioactive elements used in
radiometric dating is the (half-life, era, Precambrian).
3. (Microspheres, Ribozymes, Cyanobacteria) are tiny hollow structures made of
short chains of amino acids and might have been the first step towards cellular
organization.
4. Describing a fossil as being older than the layer of rock above it is called
(fossil, relative, absolute) dating.
Match the words on the left with the statements on the right.
_____ 5. fossil record
_____ 6. geologic time scale
_____ 7. mass extinction
_____ 8. radiometric dating
Using the word bank below, fill in each blank provided.
cyanobacteria isotopes
eras ribozyme
9. Oxygen entered the atmosphere because of the _______________________.
10. A kind of RNA that can act like an enzyme is a(n) _______________________.
11. Radiometric dating uses unstable _______________________.
12. The geologic time scale is divided into large blocks of time called
_______________________.
a. the death of all members of many species
b. shows the different parts of Earth’s 4.5 billion years of history
c. made up of all the fossil evidence that has
been found so far
d. a way of finding the absolute age of a fossil
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 93 Bacteria and Viruses
Skills Worksheet
Vocabulary Review
Bacteria and Viruses
In the space provided, write the letter of the term or phrase that best completes
each sentence or answers each question.
_____ 1. Which of the following is a protein-carbohydrate compound found in
bacterial cell walls?
a. peptidoglycan b. plasmid c. Gram-negative
_____ 2. A small extra loop of DNA is a a. pilus. b. chromosome. c. plasmid.
_____ 3. A bacterial structure that can survive environmental stress is a(n)
a. endospore. b. plasmid c. toxin.
_____ 4. Bacteria that stain pink with a Gram stain are
a. Gram-positive. b. Gram-negative. c. archaea.
_____ 5. A process in which two organisms exchange genetic material is called
a. conjugation. b. binary fission. c. transformation.
_____ 6. A process in which bacteria take up DNA from their environment is called
a. conjugation. b. transduction. c. transformation.
_____ 7. Bacteria that stain purple with Gram stain are
a. Gram-positive. b. Gram-negative c. archaea.
_____ 8. A process in which DNA is transferred from a virus to a bacterium is
called
a. binary fission. b. conjugation. c. transduction.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 94 Bacteria and Viruses
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
bacteriophages envelope lytic cycle
capsid lysogenic cycle
Pieces of nucleic acid contained in a protein coat are called viruses. The protein
coat, or (9) ___________________, may enclose RNA or DNA, but not both.
Many viruses have a membrane, or (10) ___________________, that gives the
virus a spherical shape and helps the virus enter a cell. Viruses that infect bacteria
are called (11) ___________________. Viruses cause damage when they replicate
inside cells many times. When the viruses break out, the cell is destroyed.
The cycle of infection, replication, and cell destruction is called the
(12) ___________________ ___________________. Sometimes, a virus becomes
part of the host DNA and remains in the host cell for a long period of time. This
process is called the (13) ___________________ ___________________.
Using the word bank below, fill in each blank provided.
antibiotics pathogens toxins
Koch’s postulates resistance
Diseases are caused by agents called (14) ___________________. The
four-step procedure that is used to identify these agents is known as
(15) ___________________. Bacteria cause disease in two ways. They destroy
body tissues, or they release poisonous (16) __________________. Bacteria that
cause disease can be killed or prevented from growing by the use of chemicals
called (17) ___________________. The overuse of these chemicals can cause
(18) ___________________, which allows the bacteria to tolerate them.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 99 Protists
Skills Worksheet
Vocabulary Review
Protists
Using the word bank below, fill in each blank provided.
alternation of generations holdfast zygospore
gametes red tide zygote
1. A _______________________ is caused by a bloom of dinoflagellates.
2. Brown algae use a _______________________, a rootlike structure, to
prevent being washed away by waves.
3. Many protists reproduce sexually when two _______________________
combine to form a _______________________.
4 The process of reproduction in which two distinct forms that differ in method
of reproduction are produced is called _______________________.
5. A _______________________ can survive freezing, drying, and UV radiation.
Circle the term that best completes each sentence.
6. A (pseudopod, plasmodium, flagellum) is a mass of cytoplasm with many
nuclei.
7. The side-by-side reproduction of two paramecia where nuclear material is
exchanged is (mitosis, conjugation, binary fission).
8. (Sporozoans, Flagellates, Amoeboids) are protists that have no means of
locomotion.
9. Paramecia use (a contractile vacuole, an oral groove, cilia) to remove excess
water from the cell.
10. Amoebas engulf food particles with their (pseudopodia, vacuoles, oral
grooves).
11. A (water mold, flagellate, sporozoan) caused the great potato blight in Ireland
in the 1800s.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 100 Protists
Vocabulary Review continued
Questions 12–14 refer to the figures below, which show three single-celled
organisms. Circle the term that best completes each sentence.
12. Organism A moves using flexible extensions called (pseudopodia, flagella,
cilia).
13. Organism B moves by means of a (flagellum, tail, cilium).
14. Organism C moves by means of (cilia, pseudopodia, flagellum).
In the space provided, write the letter of the description that best matches the
term.
_____15. blade
_____16. algal bloom
_____17. merozoite
_____18. sporozoite
_____19. test
_____20. sporophyte
a. first stage of malaria parasite that infects the liver
b. diploid phase of multicellular algae
c. overgrowth of protists in an aquatic environment
d. second stage of malarial parasite that infects
red blood cells
e. leaflike structure in kelp
f. outer shell of an amoeboid protist
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 105 Fungi
Skills Worksheet
Vocabulary Review
Fungi Match the words on the left with the statements on the right.
_____ 1. chitin
_____ 2. zygosporangium
_____ 3. rhizoid
_____ 4. mycorrhiza
_____ 5. lichen
_____ 6. hyphae
Match the words on the left with the statements on the right.
_____ 7. mycelium
_____ 8. dermatophyte
_____ 9. ascus
_____ 10. yeast
_____ 11. basidium
_____ 12. saprobe
a. aid in the transfer of minerals from the soil to a
plant
b. thick-walled sexual structure
c. the tough polysaccharide found in fungal cells
and the hard outer covering of insects
d. close living association (symbiosis) between a
fungus and a green alga
e. the hyphae that anchor a fungus to its source of
food
f. thin filaments that make up the body of a fungus
a. saclike structure in which haploid spores are
formed
b. tangled mass formed by hyphae
c. fungi that infect skin and hair
d. the common name given to unicellular fungi
e. club-shaped sexual reproductive structure
f. fungi that absorb nutrients from dead
organisms
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 106 Fungi
Vocabulary Review continued
In the space provided, write the letter of the term or phrase that best completes each sentence or answers each question.
_____ 13. The partial walls between some fungal cells are called
a. membranes.
b. septa. c. mycelia.
_____ 14. Fungi that do not have an observed sexual stage are grouped together as
a. imperfect fungi. b. asexual fungi.
c. parasitic fungi.
_____ 15. What is the fungal structure in which asexual spores are produced?
a. sporangium
b. ascus
c. basidium
_____ 16. A dikaryotic hypha has cells with
a. no nuclei.
b. one nucleus.
c. two nuclei.
_____ 17. The phylum of modern fungi that provide clues about the evolution of
kingdom Fungi is
a. Zygomycota. b. Chytridiomycota.
c. Ascomycota.
_____ 18. Ascomycetes produce asexual spores in specialized hyphae called
a. asci.
b. conidiophores.
c. an ascocarp.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 111 Plant Diversity and Life Cycles
Skills Worksheet
Vocabulary Review
Plant Diversity and Life Cycles
Using the word bank below, fill in each blank provided.
antheridium pollen grain sorus
archegonium pollination spore
____________________ 1. a structure that makes eggs
____________________ 2. a structure that makes sperm
____________________ 3. a group of sporangia on a fern frond
____________________ 4. contains a male gametophyte of a seed plant
____________________ 5. a reproductive cell or structure that is resistant to
environmental conditions
____________________ 6. the transfer of pollen grains from the male to the female reproductive structure
Match the words on the left with the statements on the right.
_____ 7. angiosperm
_____ 8. cotyledon
_____ 9. dicot
_____10. gymnosperm
_____11. monocot
_____12. seed
Circle the term that best completes each sentence.
13. The female reproductive part of a flower is the (anther, pistil, or rhizome).
14. The (fruit, rhizome, or spore) is the horizontal underground stem of a fern.
15. The (petal, frond, or stamen) of a flower consists of an anther and a filament.
16. A structure in which spores form is called a (sporangium, frond, or fruit).
a. leaflike structure that is part of a plant embryo
b. a seed plant that produces seeds in fruit
c. flowering plant with seeds that have one seed leaf
d. a seed plant that produces cones instead of
fruit
e. made up of a plant embryo surround by a
protective coat
f. flowering plant with seeds that have two seed leaves
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 112 Plant Diversity and Life Cycles
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
cuticle frond fruit
17. The spore-bearing leaf of a fern is called a _______________________.
18. The _______________________ is a waxy layer that covers the nonwoody,
aboveground parts of most plants.
19. The seeds of angiosperms develop within a _______________________.
Using the word bank below, fill in each blank provided.
anther ovule sporophyte
gametophyte pollen grain
____________________ 20. a structure that carries a plant’s sperm
____________________ 21. the pollen-producing sac of a seed plant
____________________ 22. the stage in plant life cycles that produces spores
____________________ 23. the stage in plant life cycles that produces gametes
____________________ 24. a flower structure that contains an egg and becomes
a seed
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 117 Seed Plant Structure and Growth
Skills Worksheet
Vocabulary Review
Seed Plant Structure and Growth Match the words on the left with the statements on the right.
_____ 1. apical meristem
_____ 2. dermal tissue
_____ 3. ground tissue
_____ 4. lateral meristem
_____ 5. vascular tissue
Using the word bank below, fill in each blank provided.
blade petiole stoma
guard cell phloem xylem
______________________ 6. lets a plant exchange oxygen and carbon dioxide
______________________ 7. the broad, flat part of a leaf
______________________ 8. one of a pair of cells that open and close each stoma
______________________ 9. tissue made of soft-walled cells that carry organic
nutrients
______________________ 10. tissue made of hard-walled cells that carry water and
mineral nutrients
______________________ 11. the stalk that attaches a leaf to the stem of a plant
Match the words on the left with the statements on the right.
_____ 12. heartwood
_____ 13. meristem
_____ 14. mesophyll
_____ 15. sapwood
a. makes up much of the inside of the nonwoody
parts of a plant
b. region that causes a plant to grow in width
c. conducts materials and provides support for a
plant
d. region that causes a plant to grow in length
e. forms the protective outer layer of a plant
a. lies outside the heartwood and has vessel cells that
can conduct water
b. the ground tissue in a leaf
c. area of actively dividing cells in a plant
d. the wood in the center of a mature stem or tree trunk
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 118 Seed Plant Structure and Growth
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
bundle pith secondary
germination primary
16. The ground tissue used for storage in the center of most plant stems is called
_______________________.
17. The roots and stems of a plant get longer through _______________________
growth.
18. A vascular _______________________ consists of both water-conducting tissues
and sugar-conducting tissues.
19. Woody stems and roots get wider because of _______________________ growth.
20. The process by which a plant embryo resumes growth is called
_______________________.
Name ______________________________ Class __________________ Date __________________
.Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 121 Plant Processes
Skills Worksheet
Vocabulary Review
Plant Processes
Circle the term that best completes each sentence.
1. The loss of water vapor from a plant is called (perspiration, sweat, or
transpiration).
2. The condition of a seed or plant that is inactive is called
(dormancy, movement, or tropism).
3. The closing of a Venus’ flytrap is a (continuous, growth, or nastic)
movement.
Match the words on the left with the statements on the right.
_____ 4. gravitropism
_____ 5. photoperiodism
_____ 6. phototropism
_____ 7. thigmotropism
Using the word bank below, fill in each blank provided.
dependent independent tropism
8. The movement of a plant part in a nastic movement is
_______________________ of the direction of the stimulus.
9. The way a plant part moves because of a tropism is
_______________________ on the direction of the stimulus.
10. The upward growth of the shoot of a seedling is an example of a
_______________________.
a. causes a stem to wrap around a wire
b. growth of a plant part toward or away from
gravity
c. the response of plants to the length of days and nights
d. growth of a plant part toward or away from light
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 125 Introduction to Animals
Skills Worksheet
Vocabulary Review
Introduction to Animals
Refer to the word bank to unscramble each term. Then fill in each blank provided.
amniotic egg gastrovascular cavity therapsid
cephalization notochord
1. dronchoot _____________________________________________________
2. shparited ______________________________________________________
3. zephianioctal ___________________________________________________
4. rostaguscavlar tavicy ____________________________________________
5. matoinic geg ___________________________________________________
Using the word bank below, fill in each blank provided.
endoskeleton heterotroph invertebrate
exoskeleton hydrostatic skeleton vertebrate
6. An animal that has a backbone is called a(n)
___________________________.
7. An animal that obtains food by eating other organisms or their byproducts is
called a(n) ___________________________.
8. A hard, external supporting structure for the bodies of some animals is called
a(n) ___________________________.
9. A fluid-filled cavity under pressure that gives support to soft-bodied animals is
called a(n) ___________________________.
10. An animal that does not have a backbone is a(n)
________________________.
11. A hard, internal supporting structure made of bone and cartilage is called a(n)
___________________________.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 126 Introduction to Animals
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
blastula cleavage gastrulation
In all animals except sponges, the fertilized egg immediately begins to divide. The
first series of cell divisions that occur are called (12) ______________________.
Further cell divisions result in the formation of a hollow ball of cells called a
(13) ______________________. Then, the hollow ball of cells begins to fold in to
form a cup shape. This process is called (14) __________________________.
Using the word bank below, fill in each blank provided.
coelom deuterostomes protostome
The cup of cells continues to divide. The open side of the “cup” is called the
blastopore. An animal whose mouth develops near the blastopore, such as a snail,
an earthworm, or an insect, is called a(n) (15) ______________________. In other
animals, such as humans, the mouth develops from cells on the end opposite the
blastopore. These animals are called (16) ______________________. Some of
each of these types of animals develop a(n) (17) __________________________,
which contains and protects the internal organs.
In the space provided, write T if the statement is true or F if it is false.
_____18. An example of a deuterostome is an insect.
_____19. An example of a protostome is an earthworm.
_____20. An example of an animal with a coelom is a human.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 131 Simple Invertebrates
Skills Worksheet
Vocabulary Review
Simple Invertebrates
Match the words on the left with the statements on the right.
_____ 1. spicules
_____ 2. spongin
_____ 3. choanocytes
_____ 4. amoebocytes
Using the word bank below, fill in each blank provided.
cnidocytes nematocyst polyp
medusa planula
5. _______________________ free-swimming larva of a cnidarian
6. _______________________ free-floating body form of a cnidarian
7. _______________________ stinging cells located on tentacles of cnidarians
8. _______________________ sessile body form of a cnidarian
9. _______________________ tiny barbed harpoon in a cnidocyte that is used to capture prey
Refer to the word bank to unscramble each term. Then fill in each blank provided.
nematocyst proglottid
planula pseudocoelom
10. gloptodirt ____________________________________________________
11. mattencosy ___________________________________________________
12. mousepocoled _________________________________________________
13. pullana _______________________________________________________
a. sponge cells that have irregular amoebalike
shapes
b. tiny needles of silica or calcium carbonate that form a sponge’s support structure
c. flagellated cells also known as collar cells
d. tough, flexible protein fibers found in sponges
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 132 Simple Invertebrates
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
amoebocyte proglottid
cnidocyte pseudocoelom
14. A cnidarian cell called a(n) ___________________________ contains a
nematocyst that can fire outward to capture prey.
15. A sponge cell called a(n) ___________________________ moves around in
the body wall to deliver nutrients to other cells.
16. A tapeworm body segment that contains a complete reproductive unit is called
a(n) ___________________________.
17. A body cavity between the mesoderm and the endoderm that is not a true
coelom is a(n) ___________________________.
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____18. The cnidarian body form called a medusa
a. has tentacles pointing downward. b. always has its tentacle pointing upward.
c. is the body form of anemones and corals.
_____19. Which cnidarian structure reproduces asexually?
a. planula
b. medusa
c. polyp
_____20. The planula of a cnidarian
a. results from sexual reproduction.
b. is sessile.
c. attaches to the ocean bottom and becomes a medusa.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 137 Mollusks and Annelids
Skills Worksheet
Vocabulary Review
Mollusks and Annelids
Using the word bank below, fill in each blank provided.
foot radula visceral mass
mantle trochophore
Mollusks and annelids were probably the first major groups of organisms to
develop a true coelom. Another feature shared by many mollusks and annelids
is a larval stage called a (1) _______________________ that develops
from the fertilized eggs. The body cavity in mollusks is a true coelom and
usually has bilateral symmetry. Organ systems of mollusks are inside the
(2) _______________________. A (3) _______________________ wraps
around the visceral mass. Every mollusk has a muscular region called a
(4) _______________________ that is used mostly for movement. Many
mollusks have one or two shells, which protect their soft bodies. All mollusks,
except bivalves, have a tonguelike organ called a (5) _______________________.
Match the words on the left with the statements on the right.
_____ 6. cerebral ganglion
_____ 7. siphons
_____ 8. setae
_____ 9. septum
a. external bristles
b. internal wall between segments
c. primitive brain of an annelid
d. hollow tubes used to carry water to and from gills
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 141 Arthropods and Echinoderms
Skills Worksheet
Vocabulary Review
Arthropods and Echinoderms
Using the word bank below, fill in each blank provided.
appendages spiracle tracheae
cephalothorax thorax
____________________ 1. structures that extend from the body wall.
____________________ 2. the midbody region (wings grow from here)
____________________ 3. head connected with the thorax
____________________ 4. network of tubes for breathing
____________________ 5. air from outside the arthropod’s body passes
through this opening
Using the word bank below, fill in each blank provided.
chelicerae mandibles spinnerets
Malpighian tubules pedipalps
____________________ 6. waste removal system of arthropods
____________________ 7. appendages modified into pincers or fangs
____________________ 8. appendages modified to catch and handle prey and insert sperm into a female spider
____________________ 9. appendages that secrete (let out) strands of silk
____________________ 10. chewing mouthparts of subphylum Hexapoda
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 142 Arthropods and Echinoderms
Vocabulary Review continued
Match the words on the left with the statements on the right.
_____11. molting
_____12. metamorphosis
_____13. chrysalis
_____14. pupa
_____15. caste
_____16. compound eye
Match the words on the left with the statements on the right.
_____17. ossicle
_____18. water-vascular system
_____19. tube foot
_____20. skin gill
a. the physical change of a young insect into an adult
b. stage in metamorphosis during which
a larva becomes an adult
c. a protective capsule
d. periodic shedding (getting rid of) the
exoskeleton
e. the role played by an individual in a
colony
f. made of thousands of individual units
a. structure that is used to move or grip surfaces
b. part of the endoskeleton of an
echinoderm
c. interconnected canals that aid gas exchange and other functions
d. fingerlike structures that provide a larger surface area for gas exchange
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 147 Fishes and Amphibians
Skills Worksheet
Vocabulary Review
Fishes and Amphibians Using the word bank below, fill in each blank provided.
gill kidney operculum
gill slit lateral line swim bladder
1. The _______________________ is an organ that regulates salt and water balance
and removes wastes from the blood.
2. A fish’s major respiratory organ is the _______________________.
3. The hard plate that covers and draws water over the gills is the
_______________________.
4. The _______________________ _______________________ helps a fish sense
its own position and other objects in the water.
5. The _______________________ _______________________ helps a bony fish
to regulate its vertical position in the water.
6. The opening at the rear of the cheek cavity is called the
_______________________ _______________________.
Match the words on the left with the statements on the right.
_____ 7. teleost
_____ 8. tympanic membrane
_____ 9. lung
_____ 10. septum
_____ 11. pulmonary vein
_____ 12. tadpole
a. an internal, baglike respiratory organ
b. separates the atrium into right and left
halves
c. a larval frog or toad
d. a fish with a symmetrical tail, highly
mobile fins, and thin scales.
e. carries oxygen-rich blood from the
amphibian’s lungs to its heart
f. vibrates and sends sounds to the inner
ear
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 151 Reptiles and Birds
Skills Worksheet
Vocabulary Review
Reptiles and Birds Match the words on the left with the statements on the right.
_____ 1. down feathers
_____ 2. oviparous
_____ 3. ovoviviparous
_____ 4. contour feathers
_____ 5. plastron
_____ 6. carapace
Using the word bank below, fill in each blank provided.
constrictors endothermic talons
ectothermic Jacobson’s organ
7. Birds of prey capture their prey with their_______________________.
8. Snakes that wrap their bodies around their prey to suffocate them are
_______________________.
9. Animals that maintain their body heat internally are _______________________.
10. Snakes smell their environment using a structure called
_______________________.
11. Animals whose body temperature is determined by the temperature of the
surroundings are _______________________.
a. top part of a turtle shell
b. fluffy feathers that keep birds warm
c. bottom part of a turtle shell
d. females that keep eggs inside the body
until shortly before hatching
e. feathers that have many branches called
barbs to keep the feather smooth
f. organisms that produce eggs that hatch
outside the mother’s body
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 155 Mammals
Skills Worksheet
Vocabulary Review
Mammals
Using the word bank below, fill in each blank provided.
echolocation mammary glands
gestation period placenta
1. Structures that produce a source of rich nutrients for feeding young after they
are born are _______________________ _______________________.
2. The time it takes for a baby to develop inside its mother is the
_______________________ _______________________.
3. An organ called the _______________________ lets nutrients (food) and
oxygen go from the mother’s blood into the blood of a developing fetus
(baby).
4. Dolphins make high-pitched clicks that bounce off things, and this is called
_______________________.
Using the word bank below, fill in each blank provided.
hominid monotreme primate
5. A mammal called a _______________________ lays eggs that hatch.
6. A mammal that walks upright on two legs is a _______________________.
7. A mammal that has grasping hands and may walk upright or on all fours is a
_______________________.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 159 Animal Behavior
Skills Worksheet
Vocabulary Review
Animal Behavior
Using the word bank below, fill in each blank provided.
behavior innate
fixed action pattern learning
1. A(n) _______________________ is an action or series of actions performed
by an animal in response to a stimulus.
2. Genetically programmed behavior (instinct) is often called
_______________________ behavior.
3. Innate behavior is called a _______________________
_______________________ _______________________ when the behavior
always happens in the same way.
4. The development of behaviors through experience is called
_______________________.
Match the words on the left with the statements on the right.
_____ 5. conditioning
_____ 6. reasoning
_____ 7. stimulus
_____ 8. response
a. an animal’s reaction to something
b. something in the environment, such as a sound or smell, that causes an
animal to react
c. learning by association
d. drawing a conclusion based on facts or an assumption
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 160 Animal Behavior
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
courtship sexual selection
imprinting territorial
9. Learning that happens during a brief period early in a young animal’s life is
___________________.
10. When a female chooses a mate based on a certain trait or set of traits, she is
showing ___________________ _______________________.
11. When a mating male sets boundaries for other males, he is showing
___________________ behavior.
12. A ritual that helps males and females recognize each other and leads to mating
is known as ___________________ behavior.
In the space provided, write the letter of the term or phrase that best completes
each statement.
_____13. A cycle that takes place each day is called a
a. fixed action pattern. b. response.
c. circadian rhythm.
_____14. Behaviors that help animals find and gather food are called
a. communication.
b. foraging.
c. territorial behavior.
_____15. Seasonal movement from one area to another to find food or a mate is
a. migration.
b. circadian rhythm.
c. territorial behavior.
_____16. Chemicals, touch, sound, and sight are all forms of a. sexual selection.
b. communication.
c. foraging.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 165 Skeletal, Muscular, and Integumentary Systems
Skills Worksheet
Vocabulary Review
Skeletal, Muscular, and Integumentary Systems
Match the words on the left with the statements on the right.
_____ 1. nervous tissue
_____ 2. muscle tissue
_____ 3. connective tissue
_____ 4. epithelial tissue
_____ 5. leukemia
Using the word bank below, fill in each blank provided.
bone marrow ligaments stem cells
joint osteocytes tendons
6. Bones of a joint are held together by strong bands of connective tissue called
_______________________.
7. _______________________ _______________________ is the soft tissue that
either makes blood cells or stores energy inside spongy bones.
8. A junction between two or more bones is called a(n) ____________________.
9. Tightly packed mature bone cells are called ____________________.
10. _______________________ _______________________ can become more
than one type of cell.
11. Strips of strong, flexible connective tissue called _______________________
attach muscles to bones.
a. carries information throughout the body
b. supports, protects, and insulates the body
c. lines body surfaces
d. cancer of the tissues that make blood cells
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 166 Skeletal, Muscular, and Integumentary Systems
Vocabulary Review continued
Match the words on the left with the statements on the right.
_____12. epidermis
_____13. keratin
_____14. dermis
_____15. sebum
_____16. melanin
_____17. subcutaneous
tissue
Circle the term that best completes each sentence.
One muscle in a pair of muscles pulls a bone in one direction. The other muscle
pulls the bone in the opposite direction. A(n) (18) (tight, flexor, or extensor)
muscle causes a joint to bend. A(n) (19) (flexor, extensor, or loose) muscle causes
a joint to straighten.
Skeletal muscle cells are called (20) (muscle fibers, stem cells, bone marrow).
Each muscle fiber is made of small cylinder-shaped structures called (21)
(sarcomeres, myofibrils, or ligaments). These structures have alternating light and
dark bands when looked at under a microscope. One group of myofibrils is called
a (22) (ligament, tendon, sarcomere).
Two types of protein are grouped together in a sarcomere. Thick protein filaments
are called (23) (actin, myosin, myofibrils). Thin protein filaments are called (24)
(actin, myosin, myofibrils).
a. layer of connective tissue and fat found under the dermis
b. oil that lubricates the skin
c. outer layer of skin
d. pigment in skin cells
e. layer of skin that contains blood vessels,
hair follicles, and glands
f. hard protein found in skin, hair, and nails
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 171 Circulatory and Respiratory Systems
Skills Worksheet
Vocabulary Review
Circulatory and Respiratory Systems
Use the word bank to fill in the blanks.
arteries capillaries cardiovascular
lymphatic veins
The heart, blood, and blood vessels make up the (1) _______________________
system. (2) _______________________ are blood vessels that carry blood away
from the heart. From the arteries, the blood passes into a network of smaller
arteries called arterioles. Eventually, the blood is pushed through to the
(3) _______________________, which are tiny blood vessels. These tiny vessels
allow the exchange of materials between blood and the fluid around cells. After
leaving the capillaries, the blood flows into small vessels called venules. Next,
blood flows into larger blood vessels called (4)_______________________,
which carry blood back to the heart. The (5) _______________________ system
collects and recycles fluids that leak out of capillaries. This system is also
involved in fighting infections.
In the space provided, write the letter of the term or phrase that best matches the
definition.
_____ 6. ventricle
_____ 7. atrium
_____ 8. heart attack
_____ 9. stroke
_____10. blood pressure
_____11. pulse
a. force exerted by blood as it moves through the
vessels
b. rhythmic stretching of the blood vessels leading away from the heart
c. when an area of the heart does not get enough
blood
d. when an area of the brain does not get enough blood
e. chamber of the heart that pumps blood away
from the heart
f. chamber of the heart that receives blood from the body and lungs
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 172 Circulatory and Respiratory Systems
Vocabulary Review continued
Use the word bank to fill in the blanks.
plasma platelets red blood cells
white blood cells
Blood is made up of cells and a liquid called (12) _______________________.
Most of the cells that make up blood are (13) _______________________
_______________________, which carry oxygen. The main job of (14)
______________________________________________
_______________________ is to defend the body against disease. Cell pieces in
the blood called (15) _______________________ play an important role in the
clotting of blood.
Using the word bank below, fill in each blank provided.
alveoli bronchi diaphragm
larynx pharynx trachea
____________________ 16. a long, straight tube in the chest cavity through
which air passes
____________________ 17. two small tubes that lead to the lungs
____________________ 18. the voice box
____________________ 19. a muscular tube in the upper throat
____________________ 20. tiny air sacs surrounded by capillaries
____________________ 21. a muscle below the rib cage that drives breathing
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 177 Digestive and Excretory Systems
Skills Worksheet
Vocabulary Review
Digestive and Excretory Systems
Using the word bank below, fill in each blank provided.
nutrient calorie excretion digestion
1. _______________________ is the process that rids the body of wastes made
during metabolic reactions.
2. The process of breaking down food into molecules the body can use is called
_______________________.
3. A _______________________ is a unit for measuring the energy released
from food.
4. A _______________________ is a substance the body needs for energy,
growth, repair, and maintenance.
In the space provided, write the letter of the term or phrase that best matches the
definition.
_____ 5. vitamin
_____ 6. mineral
_____ 7. pepsin
_____ 8. villi
_____ 9. esophagus
_____10. peristalsis
a. inorganic substances that occur
naturally and are not made by living
things
b. fingerlike structures that line the small intestine
c. a long tube that connects the mouth to
the stomach
d. a stomach enzyme
e. the squeezing of muscles in the
esophagus in a wavelike way that
pushes food to the stomach
f. carbon-based substances that are found in small amounts in foods
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 178 Digestive and Excretory Systems
Vocabulary Review continued
In the space provided, write the letter of the term or phrase that best matches the
definition.
_____11. urea
_____12. nephron
_____13. urine
_____14. ureter
_____15. urinary bladder
_____16. urethra
a. a liquid that removes metabolic wastes
from the body
b. a sac that stores urine
c. a tube that carries urine out of the body
d. microscopic structures in the kidneys that filter blood
e. a tube that carries urine from the kidney
to the urinary bladder
f. a toxic metabolic waste
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 181 The Body’s Defenses
Skills Worksheet
Vocabulary Review
The Body’s Defenses
Using the word bank below, fill in the blanks with the term being described.
antigen inflammation mucous membrane
histamine macrophage pathogen
1. _______________________ a disease-causing agent
2. _______________________ makes a sticky liquid that traps disease-causing
agents before they can cause infection
3. _______________________ a protective response that happens in tissues that
have been injured or invaded with disease-causing agents
4. _______________________ a chemical that causes local blood vessels to
dilate (get large)
5. _______________________ a white blood cell that takes in and kills
pathogens
6. _______________________ a protein on the outside of a cell that tells the
body a cell is foreign
Using the word bank below, fill in each blank provided.
antibody cytotoxic memory
B cells helper plasma
7. _______________________ T cells activate other cells in the immune system.
8. Infected cells are killed by _______________________ T cells.
9. Y-shaped proteins that bind specific antigens are _______________________.
10. White blood cells that produce and release antibodies during the first time that
a pathogen invades the body are _______________________ cells.
11. _______________________ fight pathogens outside body cells.
12. After an infection is over, _______________________ cells continue to patrol
the body.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 182 The Body’s Defenses
Vocabulary Review continued
In the space provided, write the letter of the description that best matches each term.
_____13. allergen
_____14. allergy
_____15. vaccine
_____16. immunity
In the space provided, write the letter of the term that best completes each
sentence or answers each question.
_____17. The virus that causes acquired immune deficiency syndrome is
a. AIDS. b. HIV.
c. SCID.
_____18. Which is caused by a virus that infects and kills helper T cells?
a. AIDS
b. autoimmune disease
c. allergies
a. long-lasting resistance to a disease-causing agent
b. a solution that contains dead or weakened disease-causing agents
c. weak antigens that do not make most people sick
d. an immune response to an antigen that most people do not react to
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 185 Nervous System
Skills Worksheet
Vocabulary Review
Nervous System
Match the words on the left with the statements on the right.
_____ 1. neuron
_____ 2. dendrite
_____ 3. axon
_____ 4. nerve
_____ 5. action
potential
_____ 6. membrane potential
Match the words on the left with the statements on the right.
_____ 7. sensory receptor
_____ 8. synapse
_____ 9. neurotransmitter
_____10. retina
_____11. semicircular canal
Match the words on the left with the statements on the right.
_____12. taste bud
_____13. cochlea
_____14. reflex
_____15. brain
_____16. cerebellum
a. bundle of axons of neurons
b. part of a neuron that conducts nerve impulses
away from the cell body
c. part of a neuron that receives information from other neurons
d. nerve cell
e. difference in electrical charge between the inside and the outside of a cell
f. sudden change in the polarity of a neuron’s
membrane
a. layer of specialized cells lining the inner
surface of the eye
b. chemical that sends nerve impulses
across synapses
c. neuron that detects sensory stimuli
d. fluid-filled canal in the inner ear that
helps with balance
e. where a neuron meets another cell
a. the body’s main processing center
b. part of the brain that controls balance,
posture, and movement
c. sudden, rapid, and involuntary response
to a stimulus
d. fluid-filled chamber of the inner ear that is important to hearing
e. concentration of sensory nerve endings
on the tongue
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 186 Nervous System
Vocabulary Review continued
Using the word bank below, fill in each blank provided.
addiction psychoactive tolerance
depressant stimulant withdrawal
17. A drug than can alter the functioning of the central nervous system is called
a(n) _______________________ drug.
18. A psychoactive drug that generally decreases the activity of the central
nervous system is called a(n) _______________________.
19. _______________________ is caused by repeated use of a drug that alters the
normal functioning of neurons and synapses.
20. A psychoactive drug that increases the activity of the central nervous system is
called a(n) _______________________.
21. _______________________ is a set of emotional and physical symptoms
caused by removing a drug from the body of an addicted person.
22. The need for increasing amounts of a drug to achieve the desired feelings is
called _______________________.
Match the words on the left with the statements on the right.
_____23. cerebrum
_____24. spinal cord
_____25. brainstem
_____26. central nervous
system
_____27. peripheral nervous system
a. cable of nerves that goes from the bottom of the brain through the backbone to just below
the ribs
b. largest part of the brain
c. contains sensory neurons and motor neurons
d. includes the brain and the spinal cord
e. part of the brain that include the midbrain, pons, and medulla oblongata
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 191 Hormones and the Endocrine System
Skills Worksheet
Vocabulary Review
Hormones and the Endocrine System
Match the words on the left with the statements on the right.
_____ 1. hormones
_____ 2. endocrine glands
_____ 3. target cell
_____ 4. feedback mechanism
Match the words on the left with the statements on the right.
_____ 5. progesterone
_____ 6. antagonistic hormone
_____ 7. second messenger
Match the words on the left with the statements on the right.
_____ 8. epinephrine
_____ 9. norepinephrine
_____10. androgen
_____11. estrogen
a. a cycle of events in which information from one step affects an earlier step
b. chemical messages that are made in one part
of the body and cause changes in another part of the body
c. ductless organs that secrete hormones into
either the bloodstream or the fluid around
cells
d. a specific cell on which a hormone acts
a. a hormone that counteracts the effect of another hormone
b. a molecule that passes a chemical message
from the first messenger to the cell
c. a hormone produced by the ovaries
a. a hormone that increases heart rate and
blood flow to the muscles and is responsible for the fight-or-flight response
b. a male sex hormone that is produced
mainly by the testes
c. a hormone that regulates the female reproductive system
d. a hormone that increases blood pressure
and is responsible for the fight-or-flight response
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 195 Reproduction and Development
Skills Worksheet
Vocabulary Review
Reproduction and Development
Match the words on the left with the statements on the right.
_____ 1. ovum
_____ 2. semen
_____ 3. menstruation
_____ 4. vagina
_____ 5. penis
Using the word bank below, fill in each blank provided.
epididymis ovary uterus
fallopian tube testis vas deferens
6. The ___________________is the hollow, muscular organ in which an embryo
implants itself and grows.
7. One of the gamete-producing organs of the male reproductive system is a(n)
___________________.
8. One of the passageways through which an ovum moves from an ovary toward
the uterus is a(n) ___________________.
9. The ___________________ is the long, coiled tube where sperm mature and
are stored.
10. One of the gamete-producing organs of the female reproductive system is a(n)
___________________.
11. The tube that carries sperm from the epididymis to the urethra is the
___________________.
a. muscular tube that leads from the outside of a
female’s body to the uterus
b. a mature egg cell
c. a mixture of fluids secreted with sperm
d. the male organ that releases sperm into the female reproductive system
e. the shedding of blood and tissues from the
lining of the uterus through the vagina during
the monthly cycle
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 196 Reproduction and Development
Vocabulary Review continued
In the space provided, write the letter of the term that best completes each
statement or best answers each question.
_____12. A developing human during the first eight weeks after fertilization is a(n)
a. blastocyst.
b. embryo.
c. fetus.
_____13. What is the burrowing of the blastocyst into the lining of the uterus?
a. sperm production b. gestation
c. implantation
_____14. The developing human from the eighth week of pregnancy until birth is
a(n)
a. blastocyst.
b. embryo. c. fetus.
Using the word bank below, fill in each blank provided.
genital herpes ovulation prostate gland
menstrual cycle pelvic inflammatory disease seminiferous tubule
15. A severe inflammation of the uterus, ovaries, or fallopian tubes that often
results from an untreated bacterial STI is called ___________________.
16. The release of an egg cell is called___________________.
17. The series of changes that prepare the uterus for possible pregnancy each
month is called the ___________________.
18. One of the coiled tubes inside the male gamete-producing organ where sperm
are produced is called a(n) ___________________.
19. The ___________________ secretes a liquid that neutralizes the acids in the
female reproductive system.
20. One of the most common viral STIs in the United States is
___________________.
Name ______________________________ Class __________________ Date __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Biology 201 Forensic Science
Skills Worksheet
Vocabulary Review
Forensic Science Match the words on the left with the statements on the right.
_____ 1. ballistics
_____ 2. toxicology
_____ 3. pathology
In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question.
_____ 4. Forensic scientists use science to investigate
a. legal matters.
b. only crimes.
c. disease.
_____ 5. A tool that separates chemicals based on their physical properties is
a. luminol.
b. a chromatograph.
c. a spectrometer.
_____ 6. Which tool records how a substance interacts with wavelengths of
electromagnetic radiation?
a. chromatograph
b. spectrometer
c. microscope
Match the words on the left with the statements on the right.
_____ 7. autopsy
_____ 8. rigor mortis
_____ 9. livor mortis
_____ 10. algor mortis
a. study of disease
b. study of harmful substances and their
effects on the body
c. science that deals with the motion and
impact of projectiles
a. stiffening of a body after death
b. examination of a body after death
c. settling of blood in a body after death
d. cooling of a body after death