The first visible sign of the development of adult secondary sexual characteristics in males is
A) the growth of pubic hair.
B) a spurt in growth.
C) a lowering of the voice.
D) the growth of the testes and scrotum.
E) the growth of facial hair.

Question

Quizplus · Accepted Answer

The first visible sign of the development of adult secondary sexual characteristics in males is the growth of the testes and scrotum. This marks the onset of puberty and is followed by other secondary sexual characteristics such as pubic hair growth, voice changes, and facial hair development.

The First Visible Sign of the Development of Adult Secondary