Which Statement About Soapberry Bug Beaks Is True

question 17

Multiple Choice

Which statement about soapberry bug beaks is true?

• A) Beak length is not a heritable trait.
• B) Beak length has evolved in response to changes in the feeding habits of the soapberry bugs.
• C) Measurable changes in average beak length have occurred on a time scale of centuries, but are not detectable on a time scale of a few decades.
• D) Soapberry bugs feed on the same plant host species everywhere they occur, which is what makes it possible to study the evolution of beak length across their geographic range.

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