Multiple Choice
In which of the following situations is adaptive radiation least likely to occur?
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Which of the following statements are true?
I) Adaptive radiations often follow mass extinction events as organisms adapt to fill previously occupied niches.
II) Adaptive radiations are common on new volcanic islands where organisms can occupy many new environments.
III) The evolution of a new trait can trigger adaptive radiation as organisms are able to outcompete resident organisms in many different environments.
Which of the following would be considered an example of an adaptive radiation?