Evolution Vocabulary

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

• Natural Selection

• Adaptation

• Evolution

• Gene Pool

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Organisms with traits that make them better adapted to their environment will live longer and reproduce more than organisms less adapted to the environment.

• Natural Selection

• Adaptation

• Evolution

• Gene Pool

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All the genes available in a population

• Genetic Equilibrium

• Adaptation

• Descent with Modification

• Gene Pool

When traits that favor reproduction, even though they may decrease an organism's ability to survive, become more common over time

• Genetic Equilibrium

• Adaptation

• Sexual Selection

• Descent with Modification

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When allelic frequencies are stable and unchanging, therefore evolution is not occurring

• Genetic Equilibrium

• Adaptation

• Sexual Selection

• Descent with Modification

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

• Genetic Equilibrium

• Adaptation

• Sexual Selection

• Descent with Modification

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

• Genetic Equilibrium

• Adaptation

• Sexual Selection

• Descent with Modification

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When two organisms evolve in response to one another

• Gradualism

• Coevolution

• Punctuated Equilibrium

• Convergent Evolution

• Speciation

Answer explanation

co- as a prefix means together. (i.e. co-captains)

When you think coevolution, think about two species that have evolved together.

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Slow change in allele frequencies over long periods of time

• Gradualism

• Coevolution

• Punctuated Equilibrium

• Convergent Evolution

• Speciation

Answer explanation

Gradual means taking place or progressing slowly or by degrees.

The key difference between Gradualism and Gradual Extinction, is that the second includes an extinction event meaning that species is eliminated.

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Rapid evolutionary change followed by a period of stability.

• Gradualism

• Coevolution

• Punctuated Equilibrium

• Convergent Evolution

• Speciation

Answer explanation

Equilibrium means stability or balance.

fast (punctuated) change followed by no change.