Bio. 2 Flashcardziz Ch. 15: Evolution

Front

What is the greatest potential for evolutionary change in a population?

Back

A small population with many mutations provides the greatest potential for evolutionary change.

Front

What type of speciation occurs when ancestral and new species live side by side?

Back

Sympatric speciation occurs when ancestral and new species live side by side with no physical barrier.

Front

What is the Founder Effect?

Back

The Founder Effect occurs when a small sample of a population becomes separated from the larger population, leading to reduced genetic diversity.

Front

What is genetic drift?

Back

Genetic drift is the change in allele frequencies due to random chance, often having a more significant effect in small populations.

Front

What is biogeography?

Back

Biogeography is the study of the distribution of plants and animals across different geographical areas.

Front

What is the Bottleneck Effect?

Back

The Bottleneck Effect occurs when a population's size is significantly reduced for at least one generation, leading to a loss of genetic diversity.

Front

What is gene flow?

Back

Gene flow is the transfer of genetic material between populations, which can increase genetic diversity.

Front

What is allopatric speciation?

Back

Allopatric speciation occurs when populations are geographically isolated, leading to the formation of new species.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the Hardy-Weinberg principle?

Back

The Hardy-Weinberg principle describes the genetic equilibrium in a population that is not evolving.