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| the part of Earth that supports life |
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| all the organisms livng in an area, as well as the nonlivng parts |
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| the study of interactions that occur among oranisms and their environments |
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| all organisms of the same species that live in an area at the same time and can reproduce with each other. |
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| all the populations of all species living in an ecosystem |
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the place where an organism lives
(example: forest) |
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| anything that restricts the number of individuals in a population, including both living and non-living things |
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| the largest number of individuals of one species that an ecosystem can support over time |
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| organisms that use an outside energy source like the sun to make energy-rich molecules |
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| organisms that cannot make their own food |
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| a close relationship among species |
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| a symbiotic relationship in which both species benefit |
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| a symbiotic relationship in which one organism benefits and the other is not affected |
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symbiotic relationship in which one organixm benefits but the other is harmed
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an organism's role in its environment
(how it obtains food and shelter, finds a mate, cares for its young, and avoids danger) |
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