Natural Selection and Adaptations

How do adaptations help animals?

• to hide from predators
• to hunt for food
• to survive in their habitats
• All of these are correct

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What genetic change allows organisms to survive natural selection in their environments? 

• learned behavior
• acquired traits
• analogies
• adaptations

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Which statement does not accurately describe natural selection?

• Individual organisms change their genes to adapt to their environment
• The genetic composition of a population changes from one generation to the next
• More advantageous traits become more common in population
• Beneficial and useful traits are inheritable

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Predict which moth would increase in population

• light 
• dark

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Natural selection results in change over time by acting on traits that are

• heritable
• new
• mutated 
• better than the best

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When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

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Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

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Which of the following means "genetic change over time"

• natural selection
• speciation
• evolution
• fitness

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According to Darwin’s theory of natural selection, the individuals that tend to survive are those that have

• characteristics their parents acquired by use and disuse.
• the greatest number of offspring.
• characteristics that plant and animal breeders value.
• variations best suited to the environment.

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