Term
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Definition
| the study of the interactions among organisms and their environment |
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Definition
| nonling parts of the environment |
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Definition
| is needed by all organisms for cell and life processes |
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Definition
| determine where plants and animals can live |
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Definition
| gases such as oxygen, nitrogen, and carbon dioxide are needed by species |
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Definition
| types determine what plants and animals can live in an area |
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Definition
| living or once-living parts of the environment |
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Definition
| all members of one species living together |
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Definition
| groups of populations that interact with each other in a given area |
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Definition
| the biotic community and its abiotic factors |
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Definition
| large area containing several ecosystems |
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Definition
| the top layer of the Earth's crust, all water, and the atmosphere |
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Definition
| number of individuals in a population |
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Definition
| number of individuals in a particular area |
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Definition
| how organisms are arranged in an area |
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Definition
| a biotic or abiotic factor that restricts the size of a population |
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Definition
| the maximum population size that can live in an environment over time |
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Definition
| the size a population could reach if no limiting factors stopped its growth |
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Definition
| close interaction between species |
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Definition
| when both species benefit from the relationship |
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Definition
| a helpful relationship to one species but has no effect on the other |
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Definition
| when one species is harmed and the other benefits |
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Term
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Definition
| occurs when one species hunts, kills and eat another |
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Definition
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Definition
| an organism's function in its ecosystem |
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Definition
| moves through a community as producers and consumers interact |
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Definition
| how food energy moves from one organism to another |
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Term
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Definition
| overlapping food chains to better show the way energy moves through an ecosystem |
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