Forces of Evolution

A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.

• gene pool 

• founder effect

• bottleneck

• mutation

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Ten years ago, in a small population of ducks, two sizes of eyes were observed, large and small. Three ducks have large eyes and 7 have small.  2 of the large-eyed ducks are randomly hit by cars and killed. Today, no large-eyed ducks are present in the population.

• gene flow

• bottleneck

• mutation

• founders

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Genetic Diversity is increased through this process.

• Gene Flow

• Genetic Drift

Who is considered the co-founder of evolution and said that the driving force for evolution was natural selection?

• Alfred Wallace

• Charles Darwin

• Thomas Malthus

• Gregor Mendel

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Sent Darwin and essay with similar ideas as what Darwin proposed.

• Malthus

• Hutton

• Lyell

• Lamarck

• Wallace

Which of the following is a mechanism by which genetic variation is introduced into a population?

• Natural Selection

• Genetic Drift

• Mutation

• Bottleneck Effect

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What is the term for the movement of genes between populations?

• Gene Flow

• Genetic Drift

• Natural Selection

• Mutation

Which evolutionary force is most likely responsible for a small population of animals becoming genetically similar over time?

• Gene Flow

• Genetic Drift

• Natural Selection

• Mutation

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A population of rabbits is separated by a river, leading to the development of two distinct species over time. What evolutionary process does this illustrate?

• Gene Flow

• Genetic Drift

• Speciation

• Mutation

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Which of the following is an example of a bottleneck effect?

• A large population of birds migrates to a new island.

• A disease drastically reduces the population of a species.

• A few individuals colonize a new habitat.

• A mutation introduces a new trait.