While 13 years old, Brian was on vacation with his parents and noticed that he had some hair under his arms. Brian is experiencing a change in his body due to __________.

Question

Quizplus · Accepted Answer

Puberty is the period of maturation during which the sexual organs mature. Secondary sex characteristics are also developing. Pubic hair begins to grow at around age 12, followed by the growth of underarm and facial hair.

While 13 Years Old, Brian Was on Vacation with His