Flashcards Biology

8/18/2019 Flashcards Biology

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All of the nonliving factors inan organism's environment

The _________ is the portionof earth that supports life.

Each step in a food chain orfood web is a(n)


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abiotic

biosphere

trophic level


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________ is the total mass of living matter at each trophic

level

______ is a biologicalcommunity and all of the

abiotic factors that affect it.

The act of one organism

consuming another organismfor food is __________.


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biomass

ecosystem

predation


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A(n) ________ _______ is asimplified model representingthe transfer of energy from

organism to organism.

The close relationship thatexists when two or more

species live together is ______.

____ is the scientific disciplinein which the relationships

among living organisms andthe interaction the organismshave with their environments

are studied.


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food chain

symbiosis

Ecology


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Eats both plants and animals

Eats fragments of dead matterand returns nutrients to the soil,

air, and water

heterotroph that eats onlyplants


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omnivore

detritivore

herbivore


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Heterotroph that preys on otherheterotrophs (eats meat)

organism that collects energyfrom sunlight or inorganicsubstances to produce food

organism that gets its energyby consuming other organisms


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carnivore

autotroph

heterotroph


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relationship between 2 or moreorganisms that live closelytogether and benefit from each

other

relationship where oneorganism benefits at the

expense of another organism

one organism benefits and the

other is neither helped norharmed


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mutualism

parasitism

commensalism


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made up of individualorganisms of the same species

all living organisms in anenvironment

portion of earth that supportslife


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population

biotic factors

biosphere


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made up of the organisms andnonliving (abiotic) things in an

area

______ is part of all organiccompounds, which make up

living things.

________ is a nutrient that

organisms need to produceproteins


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ecosystem

carbon

Nitrogen


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What is the role or position thatan organism has in its

environment?

All of the biomes on earthcombine to form the highest

level of organization, the__________

anything that has mass or takesup space


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niche

biosphere

matter


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individual organisms of asingle species that share thesame geographical location at

the same time

Energy for most ecosystemsoriginates from the _____

The largest concentration of nitrogen is found ___________


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population

sun

in the atmosphere


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In a process called ______,

some soil bacteria is convertsfixed nitrogen back into

nitrogen gas, which returns itto the atmosphere.

This type organism capturesatmospheric nitrogen for thepurpose of nitrogen fixation

During predation, the organism

being pursued is known as the____


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denitrification

bacteria

prey


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A ______ is the place in whichan organism lives

The close relationship thatexists when two or morespecies live together is

_____________

A __________ is a chemicalsubstance that an organism

must obtain from itsenvironment to sustain life and

undergo life processes


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habitat

symbiosis

nutrient


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The exchange of matterthrough the biosphere is calledthe __________ __________.

_______ _________ representthat many interconnected foodchains and pathways in whichenergy flows through a group

of organisms

The ecological levels of

organization in order (smallestto largest)


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Two major life processes thatinvolve carbon and oxygen

_______ occurs when morethan one organism uses aresource at the same time.

About _____ of all freshwater

is found in ice caps andglaciers, making it unavailablefor use by living organisms.


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Photosynthesis and respiration

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Flashcards Biology

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