Front

Separate evolutionary origins, superficially similar due to natural selection.

Back

Analogous.

Front

Change occurs through slow, continuous processes; large changes result from small accumulations (e.g., mountain erosion).

Back

Gradualism

Front

Evolutionary process leading to new species.

Back

Speciation

Front

Species are generally stable, but rapid changes are called...

Back

Punctuated Equilibrium

Front

Change in a biological object due to related species' genetic changes.

Back

Co-Evolution

Front

Degenerate, rudimentary structure that has lost function through evolution.

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Vestigial

Front

Similar characters in different organisms inherited from a common ancestor.

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Homologous

Front

Organisms not closely related evolve similar traits due to adapting to similar environments.

Back

Convergent Evolution

Front

Rapid diversification of organisms into new forms due to environmental changes and new resources.

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Adaptive Radiation

Front

Species suited to their environment survive and reproduce.

Back

Natural Selection