Based on the Results of Studies of Male Widowbird Tail

question 37

Multiple Choice

Based on the results of studies of male widowbird tail length and mating success, what would you predict would happen to male widowbirds over many generations in the absence of constraints on tail length?

• A) Male average tail lengths would increase.
• B) Male average tail lengths would decrease.
• C) Male average tail lengths would stay the same.
• D) Male tails would become more brightly colored to attract females.

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Definitions:

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