AP Biology Unit 7 - Natural Selection

Front

Factors increasing genotype frequency

Back

Selective pressures favoring the trait

Front

Decrease in genotype/phenotype presence

Back

Changes in environment make trait less favorable

Front

Selection pressures

Back

Changes in biotic or abiotic factors influencing survivability

Front

Artificial Selection

Back

Humans breed organisms for desirable traits

Front

Founder Effect

Back

Small population breaks off from existing population

Front

Effect of genetic drift on population

Back

Decreases genetic variation

Front

Types of genetic drift

Back

Founder effect, Bottleneck effect

Front

Closest common ancestor to a crocodile?

Back

Birds

Front

Bottleneck Effect

Back

Survivors of a natural disaster repopulate an area

Front

Homologous structures

Back

Similar shared structures, different functions