AP Bio Unit 7 Natural Selection

A variation is . . .

• when organisms have camouflage like spots or stripes

• an organism from a different dimension

• when you order different food than your friend

• differences between organisms in the same species

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Who was the naturalist that traveled the world to study plants and animals?

• Albert Einstein

• Charles Darwin

• Charles Barkley

• Isaac Newton

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A fox with thicker fur than average would have a survival advantage over other foxes if:

• There is more competition for food in the fox population.

• The air temperature significantly decreases in winter.

• A drought occurs, limiting the amount of water available.

• A new disease appears that infects the foxes.

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What is the advantage of having different shaped beaks?

• To look different from other species.

• To protect itself against predators.

• To protect itself against prey

• To be able to eat the food readily available in the environment.

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Variations are caused by . . .

• Kaleidoscopes

• Variety Shows

• Mutations

• A change in phenotypic expression

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Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the organism knew it needed that trait, survives, and passes it on.

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What process is being shown in this image?

• Variation

• Natural Selection

• Selective Breeding

• Homeostasis

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"Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

• Natural Selection

• Evolution

• Selective Breeding

• Artificial Selection

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Which best describes the role of mutations in natural selection?

• Mutations help an organism to better survive in their environment

• An organism may acquire a helpful mutation by interacting with the environment

• A mutation may result in a beneficial trait that makes an organism more likely to survive and reproduce

• Organisms with certain traits are more likely to win competitions for mutations

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The long and sharp beak of a woodpecker is an example of:

• Natural Selection

• Selective Breeding

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