Evolution Vocabulary Part 2

Front 1

Gene flow

Back 1

physical movement of allele from one population to another

Front 2

Mutation

Back 2

permanent change in a cell's DNA

Front 3

Adaptation

Back 3

inherited characteristics of a species that develops over time in response to an environmental factor

Front 4

Natural selection

Back 4

theory developed by Darwin based on four Main ideas(excessive reproduction, variations, inheritance, and the advantage of specific traits in an environment

Front 5

Stabilizing selection

Back 5

type of natural selection that favors common traits and shifts against extreme traits thus reducing diversity

Front 6

Directional selection

Back 6

type of natural selection that favors one extreme of possible resists thus shifting the range of observed traits in a population

Front 7

Disruptive selection

Back 7

a type of naturals selection that favors more extreme traits over common ones so over time the two extremes become commonly represented in the population.

Front 8

Sexual selection

Back 8

natural selection based in mating preferences

Front 9

Reproductive selection

Back 9

final stage of speciation in which members of isolated populations are no longer able to mate

Front 10

Species

Back 10

group of organisms that interbreed and produce offspring

Front 11

Spectation

Back 11

evolution of two or more species from one ancestral species

Front 12

Convergent evolution

Back 12

evolution toward similar characteristics in unrelated species resulting from adaptation to similar conditions

Front 13

Divergent evolution

Back 13

evolution of on it more closely related species Into different species resulting from adaptations to different environmental conditions.