Evolution Vocabulary

The wings of flightless birds, like an ostrich, is an example of this.

• vestigial structures

• analogous structures

• homologous structures

• anatomy

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Study of nucleic acids and proteins to show evolutionary relationships.

• biogeography

• anatomy

• biochemistry

• embryology

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Migration

• genetic equilibrium

• gene flow

• genetic drift

• natural selection

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A physical trait that increases an organism's ability to survive in its environment.

• homologous structure

• sexual selection

• coevolution

• adaptation

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Sudden elimination of a species due to a catastrophic event.

• gradual extinction

• mass extinction

• punctuated equilibrium

• divergent evolution

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Rapid evolutionary change

• natural selection

• punctuated equilibrium

• gradualism

• gene flow

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Biological change over time that causes descendants to be different from their ancestors.

• paleontology

• evolution

• gene pool

• genetic equilibrium

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Principle of natural selection that explains how beneficial traits should become more common over time, causing a change in allele frequencies.

• overproduction of offspring

• genetic variation

• adaptation

• descent with modification

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Body structures that are similar in orientation, but completely different in function due to organisms living in different environments.

• homologous structures

• analogous structures

• vestigial structures

• anatomy

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Study of embryological development in vertebrates that has led to support the theory of common ancestry among vertebrates.

• biogeography

• biochemistry

• embryology

• morphology

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