The Trivers-Willard hypothesis predicts that __________.
A)in polyandrous mating systems,parents will bias investment toward daughters in better conditions
B)parents will invest more in sons when the parents are in good condition
C)in polyandrous mating systems,parents will bias investment toward sons in poor conditions
D)parents will invest more in sons when the parents are in poor conditions

Question

Quizplus · Accepted Answer

The Trivers-Willard hypothesis predicts that parents will invest more in offspring that are more likely to have reproductive success. In good conditions, this is often male offspring, as they have a higher potential for mating with multiple females and producing many offspring. In poor conditions, investment may be biased toward females, as they often have a higher chance of survival and reproductive success in harsh environments. Thus, choice B is correct as it states that parents will invest more in sons when the parents are in good condition.

The Trivers-Willard Hypothesis Predicts That __________