The Sizes of Horns in Males of a Particular Beetle

question 62

Multiple Choice

The sizes of horns in males of a particular beetle have an interesting distribution: the highest frequencies are around 15 millimeters and 30 millimeters,with few individuals in between.Based on this observation,which evolutionary process is most likely to be operating on these horns?

• A) Stabilizing selection
• B) Directional selection
• C) Genetic drift
• D) Disruptive selection
• E) Mutation

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