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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

basement rock

Biology; Ecology

The ancient granitic and metamorphic rock that constitutes continental crust and the continental shield.

anapsid

Biology; Ecology

A vertebrate whose skull contains no side openings behind the eyes. The only living examples are turtles.

vascular

Biology; Ecology

Networks of channels that transport nutrients, fluids, and wastes. The circulatory system is an example.

tilth

Biology; Ecology

Soil aggregation. "Good tilth" means it clumps properly for planting but is porous enough to let air in.

saprophyte

Biology; Ecology

An organism that eats dead organisms, thereby recycling the nutrients. Fungi and bacteria are examples.

thermal pollution

Biology; Ecology

A temperature rise that threatens an ecosystem, particularly one in which organisms breed or give birth.

pediment

Biology; Ecology

A gradually sloping bedrock surface at the alluvial foot of eroded mountains. Often seen in dry regions.