Elevated levels of testosterone in male birds cause them to sing during the breeding season.The elevated hormone is considered a(n)______ cause of this behavior.

Question

Quizplus · Accepted Answer

The elevated level of testosterone is a proximate cause, as it directly affects the bird's behavior of singing during the breeding season. It does not address the ultimate reason for why birds sing during the breeding season.

Elevated Levels of Testosterone in Male Birds Cause Them to Sing