Detached piece

A fragment or part of anything separated from the whole, in any manner, as by cutting, splitting, breaking, or tearing; a part; a portion; as, a piece of sugar; to break in ...

interstitial wear

Archaeology; Human evolution

See interproximal wear.

one gene-one enzyme hypothesis

Archaeology; Human evolution

The hypothesis, based on Beadle and Tatum's studies in biochemical genetics, that each gene controls the synthesis of one enzyme.

formation processes

Archaeology; Human evolution

Those processes affecting the way in which archaeological materials came to be buried, and theirsubsequent history afterwards. Cultural formation processes include the deliberate ...

subspecies

Archaeology; Human evolution

A geographically defined aggregate of local populations which differs with various degrees of significance (depending on the author) from other such subdivisions of the species.

variance

Archaeology; Human evolution

A statistical measure of how values vary from the mean. See also standard deviation.

euchromatin

Archaeology; Human evolution

Chromatin that is condensed during division but becomes uncoiled during interphase.

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Industry/Domain: Astronomy Category: Galaxy

Milky Way bubbles

The two giant bubbles of high-energy gamma rays protruding from the Milky Way, each spanning 25,000 light-years across, roughly the size of the galaxy ...