Evolution Review

An organisms ability to survive and reproduce

• Natural Selection

• Evolution

• Fitness

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The variety of alleles that exist in a population

• Genetic diversity

• Allelic homozygosity

• Gene fusion

• Natural selection

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Selection that favors one of the extreme phenotypes

• Directional selection

• Disruptive selection

• Stabilizing selection

• Artificial selection

Selection in which both extreme phenotypes are selected for

• Directional selection

• Disruptive selection

• Stabilizing selection

• Artificial selection

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Selection in which the intermediate phenotype has the greatest fitness

• Directional selection

• Disruptive selection

• Stabilizing selection

• Artificial selection

The process in which some traits become more common in a population because they give the organism greater fitness in their environment.

• Artificial selection

• Natural selection

• Lamarckian evolution

• Fitness

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Female long-tailed widow birds choose their mates based on the length of a male's tail. What type of selection is this?

• Artificial selection

• Natural selection

• Sexual selection

• Supernatural selection

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What is the ultimate source of all genetic variation?

• Natural Selection

• Mutation

• Sexual reproduction

• Genetic Drift

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Which agent of evolutionary change can occur randomly when a population is small?

• Genetic Drift

• Gene flow

• Natural Selection

• Nonrandom mating

Change in allele frequency in a population due to an immigration of individuals into the population.

• Genetic Drift

• Gene flow

• Natural Selection

• Mutation