the study of interactions that take place between organisms and their enviroment.

the protion of earth that supports living things.

nonliving parts of an organism's enviroment.

all the living organisms that inhabit an eviroment.

a group of organsims, all of the same species, which interbreed and live in the same area at the same time.

made up of interacting populations in a certain area at a certian time.

made up of interacting populations in a biological community and the community's abiotic factors.

the place where an organism lives out its life.

all strategies and adaptations a species uses in its enviroment.

the relationship in which there is a close and permanent association between organisms of different species.

a symbiotic relationship in which one species is neither harmed nor benefited.

a symbiotic relations ship where both species benifet.

a symbiotic relationship in which a member of one species derives benefit at the expense of another species.

an organism that usues light energy or energy stored in chemical compounds to make energy-rich compounds. also known as a producer.

an organism that cannot make its own food and feeds on other organisms.

these break down the complex compounds of dead and decaying plants and animals into simpler molecules that can be more easily absorbed.

a simple model that scientists use to show how matter and energy move through an ecosystem.

organisms in a food chain represent a feed step, or a _________.

shows all the possible feeding relationships at each trophic level in a community.

the total weight of living matter at each trophic level.

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WM Biology Chapter 2

Vocab Words From Chapter 2

Question	Answer
ecology	the study of interactions that take place between organisms and their enviroment.
biosphere	the protion of earth that supports living things.
abiotic factor	nonliving parts of an organism's enviroment.
biotic factor	all the living organisms that inhabit an eviroment.
population	a group of organsims, all of the same species, which interbreed and live in the same area at the same time.
biological community	made up of interacting populations in a certain area at a certian time.
ecosystem	made up of interacting populations in a biological community and the community's abiotic factors.
habitat	the place where an organism lives out its life.
niche	all strategies and adaptations a species uses in its enviroment.
symbiosis	the relationship in which there is a close and permanent association between organisms of different species.
commensalism	a symbiotic relationship in which one species is neither harmed nor benefited.
mutualism	a symbiotic relations ship where both species benifet.
parasitism	a symbiotic relationship in which a member of one species derives benefit at the expense of another species.
autotroph	an organism that usues light energy or energy stored in chemical compounds to make energy-rich compounds. also known as a producer.
heterotroph	an organism that cannot make its own food and feeds on other organisms.
decomposer	these break down the complex compounds of dead and decaying plants and animals into simpler molecules that can be more easily absorbed.
food chain	a simple model that scientists use to show how matter and energy move through an ecosystem.
trophic level	organisms in a food chain represent a feed step, or a _________.
food web	shows all the possible feeding relationships at each trophic level in a community.
biomass	the total weight of living matter at each trophic level.

Created by: TBrylewski

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