Evolution Review

During natural selection, the organisms with the best adaptations..

• survive better in their environment
• have higher fitness
• pass down their traits more often
• All of these are correct

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Which of the following is NOT part of the process of natural selection?

• Variation
• Uneven survival
• Uneven height
• Uneven reproduction

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Mutation is...

• caused by the choices an organism makes
• random
• always a good thing
• always a bad thing

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The disappearance of a species.

• Evolution
• Extinction
• Migration
• Mutation

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Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

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Changes in the genes (DNA) of a population over generations of time is__________________.

• Natural Selection
• Specification
• Evolution

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Which of the following best describes the mutations that cause some insects to be resistant to pesticides?

• These mutations are spontaneous / random

• The insects cause these mutations to happen in their cells in response to the toxicity of the pesticide

• These mutations are caused by the pesticides

• These mutations are caused by bacteria

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Which of the following best describes how natural selection results in insects that are pesticide resistant?

• When a pesticide is sprayed on a crop, a few insects survive. These insects happen to have a random mutation that makes them resistant to the pesticide. These insects survive and reproduce, eventually resulting in pesticide-resistant population.

• When a pesticide is sprayed on a crop, the insects respond by mutating their DNA, making them resistant to the pesticide. Therefore, a pesticide resistant population evolves.

• When a pesticide is sprayed on a crop, it causes mutations in the insect DNA. Some of these mutations make the insects pesticide-resistant. These insects now form a pesticide-resistant population.

• When a pesticide is sprayed on a crop, it kills the insects, which allows a new species to migrate into the habitat. Some of these species are pesticide resistant, thus a new population of pesticide resistant insects appears.

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Which of the following best describes how natural selection results in bacteria that are antibiotic resistant?

• When you take an antibiotic when you're sick, a few bacteria survive. These bacteria happen to have a random mutation that makes them resistant to the antibiotic. These bacteria survive and reproduce, eventually resulting in an antibiotic-resistant population.

• When you take an antibiotic when you're sick, the bacteria respond by mutating their DNA, making them resistant to the antibiotic. Therefore, an antibiotic-resistant population evolves.

• When you take an antibiotic when you're sick, it causes mutations in the bacteria DNA. Some of these mutations make the bacteria antibiotic-resistant. These bacteria now form a bacteria-resistant population.

• When you take an antibiotic when you're sick, it kills the bacteria, which allows a new species of bacteria to infect the body. Some of species are antibiotic resistant, thus a new population of antibiotic-resistant bacteria appears.

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A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. This process is called

• Natural Selection

• Artificial Selection

• Mutation

• Survival

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