What Is the Main Reason That Mammals Underwent Adaptive Radiation

question 27

Multiple Choice

What is the main reason that mammals underwent adaptive radiation after the demise of the dinosaurs?

• A)They had to adapt in order to physically survive the ice age.
• B)The mammals had little competition so it was easier for them to evolve into the niches that were once occupied by the dinosaurs.
• C)They had an "inner need" to become better suited to their environment.
• D)None of the above.

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