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

Add a new term

Contributors in Evolution

Become a Contributors

Evolution

Nervous system

Archaeology; Evolution

An organ system, composed of a network of cells called neurons, that allows an animal to monitor its internal and external environment, and to move voluntarily or in response to stimulation.

Yoel Rak

Archaeology; Evolution

An Israeli paleoanthropologist and anatomist whose research interests include facial morphology of fossil hominids. Rak was part of the team that found a 2. 3-million-year-old skull fragment from the ...

Heterozygote

Archaeology; Evolution

An individual having two different alleles at a genetic locus. Compare with homozygote.

Homozygote

Archaeology; Evolution

An individual having two copies of the same allele at a genetic locus. Also sometimes applied to larger genetic entities, such as a whole chromosome; a homozygote is then an individual having two ...

Polyploid

Archaeology; Evolution

An individual containing more than two sets of genes and chromosomes.

Reinforcement

Archaeology; Evolution

An increase in reproductive isolation between incipient species by natural selection. Natural selection can directly favour only an increase in prezygotic isolation; reinforcement therefore amounts ...

Species

Archaeology; Evolution

An important classificatory category, which can be variously defined by the biological species concept, cladistic species concept, ecological species concept, phenetic species concept, and ...