The difference between primary and secondary sex characteristics is that primary sex characteristics ___ and secondary sex characteristics ___.
A) mature first; mature second
B) are directly involved in reproduction; aren't
C) evolved first; evolved later
D) are the changes that occur in the initial stages of puberty; are the changes that

Question

Quizplus · Accepted Answer

Primary sex characteristics refer to the anatomical structures directly involved in reproduction, such as the reproductive organs. Secondary sex characteristics refer to physical features not directly involved in reproduction, such as breast development in females and facial hair growth in males.

The Difference Between Primary and Secondary Sex Characteristics Is That