In the Crustacean Genus Hyalella, Females Mate More Often with Males

question 15

Multiple Choice

In the crustacean genus Hyalella, females mate more often with males who have larger gnathopods. Males with larger gnathopods have been shown to be better protectors of females during amplexus. Which model of intersexual selection does this describe? A


B

• A) good genes
• B) direct benefits
• C) Fisherian runaway selection
• D) sensory bias

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