51
200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Population Dynamics Limiting Factors Density Problems Human Population Actual Te Question
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
200
300
400
500
100
PopulationDynamics
LimitingFactors
DensityProblems
HumanPopulation
Actual TestQuestions
The number of organisms per unit area.
Population Density
The pattern of spacing of a population within an area.
Dispersion
The type of dispersion displayed by a herd animal such as
American Bison.
Clumped
The type of growth model in which growth begins slow and then increases faster and faster.
Shown by a J-Shaped Graph.
Exponential
The type of growth model in which the population grows slowly at first, followed by a
period of rapid growth, and then the stabilizes at the carrying capacity. Shown with an S-
Shaped Graph.
Logistic
Any factor in the environment that depends on the number of
members in a population per unit area. (Disease, Competition,
Parasites)
Density Dependent
Any factor in the environment that does NOT depend on the
number of members per unit area. (Weather, Human Influence)
Density Independent
The type of reproductive strategists that produces few offspring and invests a lot of resources into each offspring.
(Humans, Elephants)
K-strategist
The type of reproductive strategists that produce many
offspring expending little energy to each. (Fruit Flies, Mosquitoes)
R-strategist
The maximum number of individuals in a species that an
environment can support for the long term.
Carrying Capacity
The number of organisms moving IN to a population.
Immigration
The number of organisms moving OUT of a population.
Emigration
A term that explains how fast a given population grows.
Population Growth Rate
The number of organisms being born into a population.
Natality
A population of bees starts at 100. If the growth rate is an increase of 50 bees/year, how many bees will there be in the
population after 5 years?
350 bees
The study of human population, density, distribution, movement,
and birth and death rates.
Demography
The number of males and females in each of three age
groups: pre-reproductive stage, reproductive stage, and post-
reproductive stage.
Age Structure
A population trend in which birth rates equal death rates .
Zero Population Growth
The largest factor causing an increase in the population of the
united states.
Immigration
A change in a population from high birth and death rates to low
birth and death rates.
Demographic Transition
The size of a population will decrease if mortality _________.
Increases
Density, distribution, and growth rate are characteristics used to
classify which one of the following? A. Biomes
B. PopulationsC. Limiting Factors
D. Age Structure
B. Populations
A flowering plant has seeds that are carried by the wind. Infer the most likely dispersion pattern of the plants that grow from these
seeds.A. Uniform
B. Clumped GroupsC. RandomD. Spatial
C. Random
The human population growth rate has always increased. (True
or False)
False
A fruit fly that has a short life span and produces many
offspring can be classified into which reproductive strategy?
A. r-strategistB. k-strategist
C. a carrying-capacity strategistD. a logistic strategist
A. r-strategist
