Zebra finches display sex differences in both organization of song nuclei in the brain and in singing behavior. This appears to be the result of both the organizational and the activational effects of hormones in that
A) estrogen early in life organizes the development of a female song system, and testoserone in adulthood stimulates song production.
B) estrogen early in life organizes the development of a male song system, and testoserone in adulthood stimulates song production.
C) testosterone early in life organizes the development of a female song system, and estrogen in adulthood stimulates song production.
D) testosterone early in life organizes the development of a male song system, and estrogen in adulthood stimulates song production.

Question

Quizplus · Accepted Answer

Testosterone early in life organizes the development of a male song system in zebra finches, and testosterone in adulthood stimulates song production, which is consistent with the known effects of testosterone on the development and activation of sexually dimorphic traits in many animal species.

Zebra Finches Display Sex Differences in Both Organization of Song