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Ecology
Ecology
9
Biology
10th Grade
09/26/2012

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Term
Ecology
Definition
scientific study of interractions between organisms and their environment
Term
Biosphere
Definition
portion of earth that supports life; extends from high in the atmosphere to the bottom of the oceans
Term
Species
Definition
group of organisms that can interbreed and produce fertile offspring in nature
Term
Population
Definition
group of organisms all of the species, which interbreed and live in the same time
Term
Community
Definition
collection of several interacting populations that inhabit a common environment
Term
Ecosystem
Definition
interactions among populations in a community; the community's physical surroundings
Term
Biome
Definition
group of ecosystems with the samne climax communities; biomes on land are called terrestrial biomes, those in water are called aquatic bombs
Term
Autotroph
Definition
organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients
Term
Heterotroph
Definition
organisms that cannot make their own food and must feed on other organisms for energy and nutrients
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