In the size-advantage hypothesis,if a group of fish are living in a territory dominated by a single male,females should switch from female to male when they become very large.Which of the following observations best supports this hypothesis?
A)A large female switches to a male,takes over a harem,and has more offspring.
B)A small female switches to a male,takes over a harem,and has more offspring.
C)As males in the vicinity increase in number,more females begin to switch sex.

Question

Quizplus · Accepted Answer

This observation directly supports the size-advantage hypothesis as it shows that a large female switches to a male and gains advantages such as access to a harem and increased offspring production. This shows that being large and male benefits reproductive success in this species. Option B does not support the hypothesis as it suggests a small female can successfully switch to male, which contradicts the size-advantage hypothesis. Option C does not directly support the hypothesis as it does not mention anything about female size or switching to male.

In the Size-Advantage Hypothesis,if a Group of Fish Are Living