Twelve-year-old Teetham spent the whole summer at camp.When he returned home,his parents were surprised that he was taller,more muscular,and that his voice had deepened.These physical changes are examples of which of the following?
A) puberty
B) primary sex characteristics
C) egocentrism
D) secondary sex characteristics

Question

Quizplus · Accepted Answer

The physical changes described—increased height, muscle development, and a deeper voice—are typical secondary sex characteristics that develop during puberty. These changes are not directly involved in reproduction (which would be primary sex characteristics) but signify the physical maturation of the body.

Twelve-Year-Old Teetham Spent the Whole Summer at Camp