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| nonliving parts of an organism's environment; air currents, temperature, moisture, light, and soil are example |
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| a community made up of interacting population in a certain area at a certain time |
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| Portion of Earth that supports life; extends from high in the atmosphere to the bottom ocean |
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| all the living organism that inhabits an environment |
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| Symbiotic relationship in which one species benefits and the other species is neither harmed or benefited |
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| scientific study of interaction between organisms and their environment |
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| Interaction among population in a community; the community's physical surrounding, or abiotic factors |
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| place where an organism live out its life |
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| a symbiotic relationship in which both species benefit |
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| role or position a species has in its environments; includes all biotic and abiotic interaction as an animal meets its needs for survival and reproduction |
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| symbiotic relationship in which one organism benefits at the expense of another, usually another species |
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| group of organisms all of the same species which interbreed and live in the same place at the same time |
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| permanent, close association between two or more organisms of different species |
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| Organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients |
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| The total mass or weight of all living matter in a given |
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| organisms, such as fungi and bacteria, that break down and absorb nutrients from dead organism |
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| Simple model that shows how matters and energy move through an ecosystem |
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| model that shows all the possible feeding relationship at each trophic level in a community |
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| organisms that cannot make their own food and must feed on other organisms for energy and nutrients |
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| organism that represents a feeding step in the movement of energy and materials through an ecosystems |
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