terms library

Learn about Biology Terms and get information on topics related to Biology Terms.

Featured Article: Plankton

Plankton is the mass of tiny organisms that drifts at or near the surface of oceans, lakes, and other bodies of water. See more »

Agar

Agar is a jellylike substance obtained from certain seaweeds.

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Biofilm

Biofilm is a colony of microorganisms, primarily bacteria, that attaches to a surface and forms a sticky film.

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Bioluminescence

Bioluminescence, by oh loo muh NEHS uhns, is the ability of certain living things to give off light.

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Cilia

Cilia, SIHL ee uh, are tiny, hairlike structures that project from certain kinds of cells.

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Culture

Culture, in biology, is a growth of microorganisms or cells produced under controlled conditions in a laboratory.

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Homology

Homology, hoh MOL uh jee, refers to biological traits in different organisms that evolved from similar traits in a common ancestor.

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Locomotion

Locomotion, in zoology, is the act of animals moving.

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Microtomy

Microtomy, my KROT uh mee, originally meant microscopic cutting.

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Nest

Nest is a place an animal prepares for raising its young.

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Parasite

Parasite, PAR uh syt, is an organism that feeds and lives on another organism, called a host.

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Plankton

Plankton is the mass of tiny organisms that drifts at or near the surface of oceans, lakes, and other bodies of water.

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Polymorphism

Polymorphism, pol ee MAWR fihz uhm, is the occurrence of three or more distinct types of adults in a species.

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Protist

Protist, PROH tihst, is the name of a group of simple organisms, most of which are microscopic.

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Symbiosis

Symbiosis, sihm by OH sihs or sihm bee OH sihs, means living together.

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