Mechanisms of Evolution Practice

Yellow toucan birds seek out one another to make babies together and tend to avoid the green toucan birds.

• Genetic Drift
• Non-random mating
• Gene flow
• Mutation

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Five hundred years after the deer had established a flourishing population in the park, a few of them venture back to their original woods and have babies with the deer there.

• Genetic Drift
• Mutations
• Non-random mating
• Gene flow

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What does the image represent?

• Founder effect
• Bottleneck effect
• Natural Selection
• Mutations

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One day a group of scientists collected a small group of brown anole lizards from a large group of the lizards.  Then they placed this small group of lizards on an island that had no brown anole lizards on it.  What is this an example of?

• Bottleneck Effect
• Hardy Effect
• Founder Effect
• None of These

There was once a large population of cheetah, but about 12,000 years ago most of the cheetahs were killed off because of human activity and only a few survived.  What is this an example of?

• Bottleneck Effect
• Genetic Drift
• Founder Effect
• Natural Selection

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Evolution by chance, survival of the luckiest:

• genetic drift

• sexual selection

• fitness

• coevolution

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What is a species?

• A group of organisms that can mate with each other and produce fertile offspring.

• A group of organisms that can mate and produce offspring even if those offspring are infertile.

• A group of organisms that genetically are very different from each other.

• Indivual organisms that live in the same environment.

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_________ _____ refers to the movement of individuals and/or genetic material from one population to another.

• Natural Selection

• Allele frequency

• Genetic Drift

• Gene Flow

True or False? The impact of genetic drift is greatest on small populations

• True

• False

Which type of genetic drift is being described? A fire devastates a forest. Only a few cottontail rabbits survive.

• Founder Effect

• Bottleneck Effect