Evolution

Evolution

Of or pertaining to the change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.

Industry: Archaeology

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Evolution

stepped cline

Archaeology; Evolution

A cline with a sudden change in gene or character frequency.

adaptive logic

Archaeology; Evolution

A behavior has adaptive logic if it tends to increase the number of offspring that an individual contributes to the next and following generations. If such a behavior is even partly genetically ...

particulate

Archaeology; Evolution

(as property of theory of inheritance) A synonym of atomistic.

nitrogen fixation

Archaeology; Evolution

A chemical process by which nitrogen in the atmosphere is assimilated into organic compounds. Only certain bacteria are able to fix atmospheric nitrogen, which then becomes available to other ...

fungi

Archaeology; Evolution

A group of organisms comprising the kingdom Fungi, which includes molds and mushrooms. They can exist either as single cells or make up a multicellular body called a mycelium. Fungi lack chlorophyll ...

adaptive landscape

Archaeology; Evolution

A graph of the average fitness of a population in relation to the frequencies of genotypes in it. Peaks on the landscape correspond to genotypic frequencies at which the average fitness is high, ...

monotremes

Archaeology; Evolution

A group (specifically, an order) of mammals whose females lay eggs. The young hatch and continue to develop in the mother's pouch, which is present only when needed. Two species of spiny anteater and ...