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