Natural Selection and Common Ancestry Quiz

Who is the British naturalist who first proposed the idea that species change over time?

• Gregor Mendel

• James Watson

• Francis Crick

• Charles Darwin

The theory that individuals who are better adapted to their environment are more likely to survive and reproduce is called the theory of _.

• natural selection

• overproduction

• competition

• variation

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A well-tested concept that explains a range of observations is a scientific _.

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Darwin observed similarities between organisms living on the Galapagos islands and those from which nearby continent?

• Europe

• North America

• South America

• Asia

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An adapation is a trait that helps an organism to survive and _.

• grow

• reproduce

• find food

• fight disease

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Which of the following affects natural selection? Select all that apply.

• overproduction

• variation

• age

• competition

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Natural selection acts on ( inherited / acquired ) _ traits.

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Helpful variations in a population become adaptations suited to a particular environment. The beak of a finch is an example of an adaptation that is suited to

• the predators of the finch

• the nesting site of the finch

• the wing span of the finch

• the food supply of the finch

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Provide an example of an adaptation that helps organisms to survive in their environment.

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_ is defined as change over time.

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