Who is experiencing an event that is best defined as a change in his or her primary sex characteristics?
A) Peter, who has begun to grow facial hair
B) Rob, who has begun to produce sperm
C) Maria, whose breasts have begun to develop
D) Francesca, whose pelvis is narrowing

Question

Quizplus · Accepted Answer

Primary sex characteristics refer to changes in the organs directly related to reproduction. Rob's beginning to produce sperm indicates a change in his primary sex characteristics, as sperm production is directly related to reproduction.

Who Is Experiencing an Event That Is Best Defined as a Change