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| An organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms. |
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| A community of organisms and their abiotic environment |
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| A group of varies speices that live in the same habitat and interact with each other |
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| An organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesis organic compounds from inorganic material |
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| An environmental factor that is asssociated with or results from the activities of living organisms |
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| An environmental factor that is not associated with activities of living organisms |
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| The variety of organisms considered at all levels, from populations to ecosystems |
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| The study of the interactions between organisms and the other living and nonliving components of their environment |
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| The dependence of every organism on its connections with other living and nonliving parts of its environment |
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| active demand by two or more organisms or kinds of organisms for some environmental resource in short supply |
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| An organism that feeds by breaking organic matter from dead organisms; example include bacteria and fungi |
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| The place where an organism usually lives |
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| The unique position occupied by a species, both in terms of its physical use of its habitat and its function within an ecological community |
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| An organism's relative position in a sequence of energy transfers in a food chain or food pyramid, examples include poducers and primary, secondary, and tertiary consumers |
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| An organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem |
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| an organism that eats only plants |
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| An organism that eats animals |
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| The pathway of energy transfer through varios stages as a result of the feeding patterns of a series of organisms |
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| A diagram that shows the feeding relationships among organisms in an ecosystem |
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| An organism that eats other organisms or organic matter instead of producing its own nutrients from inorganic sources |
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| An organism that eats a variety of other organisms, including animals and plants |
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