Microevolution

Over the years, white mice became extinct and darker mice survived. This is

• stabilizing selection

• directional selection

• disruptive selection

• due to exercise

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What type of selection occurs when average phenotypes are favored in the environment, while extremes have lower survival rates?

• seasonal selection

• distruptive selection

• directional selection

• stabilizing selection

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What type of isolation occurs when two populations of the same species are separated by land barriers like rivers or mountains?

• geographical isolation

• temporal isolation

• adaptive ratiation

• behavioral isolaton

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What type of isolation occurs when two populations of the same species do not have the same mating rituals or signals?

• geographical isolation

• temporal isolation

• adaptive ratiation

• behavioral isolaton

All the genes, including all the different alleles for each gene, that are present in a population at any one time

• allele

• gene pool

• genome

• mitosis

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Occurs when a small group of individuals colonizes a new habitat.

• Gene Pool

• Mitosis

• Speciation

• Founders Effect

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A natural disaster leads to a severe reduction in population.

• Gene Pool

• Bottleneck Effect

• Founders Effect

• Gene Frequency

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What type of selection occurs when the extreme population phenotypes are favored by the environment?

• Disruptive Selection

• Directional Selection

• Stabilizing Selection

• All of the above

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"Survival of the Fittest" describes which theory

• Natural selection

• Patterns of Inheritance

• Heredity

• Gene pool

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Modern whales developed their traits through natural selection.  What occurs during the process of natural selection?

• Organisms choose mates from other species to create new species
• Breeders selectively cross organisms with desired traits
• Only the fittest organisms can survive and reproduce
• Organisms remain exactly the same over time.

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