Chapter 9.2 Natural Selection and Adaptation

Who developed the theory of evolution by natural selection?

• Charles Darwin

• Aristotle

• Robert H. Whittaker

• Carolus Linnaeus

Darwin studied different types of finches (type of bird) on the Galapagos Islands. Why were they so different even though they were in the same islands?

• they came from different places.

• they lived in different environments.

• People placed them there to increase tourism.

• Scientists placed them there to studies them.

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Why were the finches collected by Darwin consider different species?

• they were different sizes.

• they had different colors.

• they had different beaks.

• they had different feathers.

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True finches from Galapagos Islands do not migrate every winter.

• True

• False

What is an archipelago?

• scientific name for a volcano.

• the deepest point in the ocean.

• a group of islands.

• a group of ecosystems

What is Darwin’s theory of evolution by natural selection?

• organisms that migrate for shorter periods of time are most likely to survive and reproduce.

• organisms that migrate for longer periods of time are most likely to survive and reproduce.

• organisms with traits best suited to their environment are most likely to survive and reproduce.

• organisms with traits best suited to their environment are most likely to migrate.

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How does a variation become a trait?

• As more and more offspring are born with it.

• As more and more offspring migrate.

• As more and more offspring perish.

• none of the above.

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What is adaptation?

• it is a small change in a trait that makes an individual slightly different from other members of its species.

• it is an inherited trait that increases an organism’s change of surviving and reproducing in a particular environment.

• it is the deliberate breeding of plants or animals for desired traits.

• None of the above.

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How does variation begins?

• it begins with a change in the environment.

• it begins with a change in the organism's diet.

• it begins with a mutation.

• it begins with migration.

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Who is the ancestor for dogs?

• panther

• wild cat

• wolf

• coyote

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