Natural Selection

Gradualism means Natural Selection would normally happen over many generations and very

• slowly

• quickly

• in space

• beyond time

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Punctuated Equilibrium implies catastrophic events caused natural selection to speed up due to great environmental changes.

• True

• False

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According to natural selection, light colored tree trunks would favor

• light colored moths

• dark colored moths

• red colored moths

• red and light colored moths

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Genetic diversity in a species makes long term survival of some members

• impossible

• improvable

• more likely

• less likely

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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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Birds with smaller beaks die out when a disease kills all food sources except hard nuts.

• adaptive radiation

• respiration

• an anomoly

• unlikely

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A physical trait favored by an environmental change can be called an

• adaptation

• extinction

• possibility

• mutation

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The special niche occupied by a particular species is called a

• extinct

• punctuated equilibrium

• habitat

• all of the above

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Natural Selection is driven by a change in the environment and survival of the

• Earth

• Fastest

• Fittest

• Biggest

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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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