In a Hypothetical Environment, Fishes Called Pike-Cichlids Are Visual Predators

question 17

Multiple Choice

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight) . The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely to result in the algae-eater population in future generations?

• A) selection for drab coloration of the algae-eaters
• B) selection for nocturnal algae-eaters (active only at night)
• C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young
• D) selection for algae-eaters that become sexually mature at smaller overall body sizes

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