Which of the following would be a proximate cause for male birds singing?
A) Birds that sing mate more often than those who do not.
B) Birds that sing are more brightly colored than birds that do not sing.
C) Changes in day length cause a small part of the brain called the "song center" to become active.
D) Birds that sing are more successful in retaining their territories than birds that do not sing.

Question

Quizplus · Accepted Answer

Changes in day length affecting the "song center" in the brain is a proximate cause because it directly triggers the behavior (singing) in response to an environmental change, rather than explaining the evolutionary or survival benefits of the behavior.

Which of the Following Would Be a Proximate Cause for Male