Biology Terms

Front

Adaptation

Back

Any heritable characteristic that increases an organism’s ability to survive and reproduce in its environment.

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Allele

Back

A different version of a gene (variation).

Front

Allele frequency

Back

How often an allele is present in a population.

Front

Analogous structure

Back

Body parts that serve similar functions but do not share structure and development.

Front

Artificial Selection

Back

Farmers used this variation and specific breeding partners to select desired traits.

Front

Behavioral isolation

Back

Different courtship rituals or other behaviors.

Front

Biogeography

Back

The study of where organisms live now and where they and their ancestors lived in the past.

Front

Directional selection

Back

When individuals at one end of a curve have a higher fitness than individuals elsewhere.

Front

Disruptive selection

Back

When phenotypes at either end of the curve have a higher fitness.

Front

Embryonic development

Back

Shows similar patterns of embryological development.