Evolution Misconceptions

Over long periods of time natural selection produces organisms different than their ancestors

• overproduction

• selection

• adaptation

• variation

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This makes an organism more suited to its environment

• species

• lifespan

• adaptation

• mutation

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Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  

• become extinct
  

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The pelvic bone of whales is not needed for movement within the water. This is an example of a(n) ______________ structure.

• vestigial

• analogous

• homologous

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The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) ______________ structure.

• vestigial

• analogous

• homologous

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Many different groups of organisms have wings, even though they do not share a recent common ancestor. This is because they evolved in environments with similar selective pressures. Wings are an example of a(n) ______________ structure.

• vestigial

• analogous

• homologous

What is the advantage of having different shaped beaks?

• To look different from other species.

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

• To protect itself against predators.

• To protect itself against prey.

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The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth

• Light moth

• Both will be equally successful

• Neither will be successful

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Why are vestigial structures evidence for evolution?

• They are useful in the organism and show natural selection at work.

• They are not useful in the organism but they were probably useful in some ancestor of that species.

• They show that these organs or behaviors help an organism adapt to new environments

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Change over time is

• evolution

• generation

• growth

• biogenesis

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