Which adolescent is experiencing a change in his primary sex characteristics?
A) Truman, who now has facial hair
B) Hank, who has begun to produce sperm
C) Stanley, who has begun to talk in a deeper voice
D) Olaf, who now has broader shoulders

Question

Quizplus · Accepted Answer

Primary sex characteristics are those directly related to the reproductive organs and the production of reproductive cells. In males, the production of sperm is a change in primary sex characteristics, which occurs during puberty. Facial hair, a deeper voice, and broader shoulders are considered secondary sex characteristics, which are traits that emerge during puberty but are not directly involved in reproduction.

Which Adolescent Is Experiencing a Change in His Primary Sex