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Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Ecology

nematodes

Biology; Ecology

Microscopic cylindrical roundworms living in water and soil. Can be parasitic (as with the trichina and the hookworm) or free-living.

carcinogen

Biology; Ecology

A substance that fosters cancer, an illness characterized by cells that cannot quit dividing in a kind of biological nation-statism.

transect

Biology; Ecology

A path from which an observer records the apparent gradient of change in animal or plant species: which, where, numbers, densities.

scarification

Biology; Ecology

Extensive, artificial earth movement that exposes the underlying soils. Also, to nick and weaken a seed coat enough for germination.

commensalism

Biology; Ecology

A coevolutionary relationship between species (usually animal species) that benefits one without significantly impacting the other.

prokaryote

Biology; Ecology

An organisms whose cells lack a nucleus. Roughly synonymous with bacteria, but divided into eubacteria and archaeans. See Eukaryote.

glacier

Biology; Ecology

A more or less permanent body of ice compacted from recrystallized snow that expands or contracts depending on gravity and climate.