David Resnick's studies of guppies showed that
A) the most critical determinant of the life history strategy of guppies was the type of food they received.
B) the most critical determinant of the life history strategy of guppies was the concentration of calcium in the water.
C) predation selects for later reproduction in guppies.
D) predation selects for earlier reproduction in guppies.
E) None of the above

Question

Quizplus · Accepted Answer

David Resnick's studies of guppies showed that predation selects for earlier reproduction in guppies. This is because in high predation environments, the chance of survival for adult guppies is low, so they start reproducing earlier in life in order to maximize their reproductive success before they are killed by predators.

David Resnick's Studies of Guppies Showed That