CCE 140 Exam 3 Terms and Past Quizzes

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1

Bio-magnification

The increasing concentration of a toxic chemical in the tissues of organisms at successively higher levels in a food chain

2

Insectivorus

An animal that feeds on insects, worms, and other invertebrates

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Terrestrial

An animal that lives on land as opposed to water

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Macroinvertebrates

Organisms that are large enough to be seen with the naked eye and lack a backbone

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Benthic

Anything associated with or occurring on the bottom of a body of water including rivers

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Piscivorous

A carnivorous animal which eats primarily fish

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Omnivorous

An animal that eats both plant and animals

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Bio-accumulation

The accumulation of a toxic chemical in an organism; occurs when an organism absorbs a substance at a rate faster than the substance is broken down and excreted

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Herbivore

An organism that eats only plants

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Trophic level

Any of several levels in an ecosystem, comprising of organisms that share the same function in a food chain

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Carvnivore

An organism that has a diet consisting of animalks