ecosystem - all the living and nonliving things that interact in a specific area; a subdivision of the environment, organism - any living biological entity, such as an animal, plant, fungus or bacterium, food chain - a representation that identifies the specific feeding relationships among organisms, food web - a representation of many interconnected food chains that shows the feeding relationships among producers, consumers and decomposers, primary consumer - are called herbivores, secondary consumer - are called carnivores , decomposer - an organism, generally a bacterium or fungus, that consumes dead organisms and organic waste, herbivore - an organism that eats only plants, autotroph - an organism that produces its own food; the source of energy for all other living things on Earth, producer - an organism that makes its own food from light energy and inorganic materials, heterotroph - organism that cannot make its own food; a consumer,

Ecology

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