Question 38

(Multiple Choice)

In a hypothetical environment,fish called pike-cichlids are visual predators of algae-eating fish (in other words,they locate their prey by sight).If a population of algae-eaters experiences predation pressure from pike-cichlids,which of the following is least likely to be observed in the algae-eater population over the course of many generations?


A)selection for drab colouration 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
E)selection for algae-eaters that are faster swimmers

Answer