Which of the Following Is Not a Reason Why Trade-Offs

question 137

Multiple Choice

Which of the following is not a reason why trade-offs constrain evolution?

• A) Most adaptations impose both fitness costs and benefits.
• B) Structures such a horns and antlers are metabolically costly to produce, but result in more reproduction by the males that possess them.
• C) Changes in allele frequencies may be influenced by chance events.
• D) Ability to consume toxic prey may reduce mobility.
• E) Adaptations can evolve only if the fitness benefits they confer exceed the costs they impose.

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