The body begins internal changes to prepare for puberty as early as age ____.
a. 4 or 5 c. 6 or 7
b. 5 or 6 d. 7 or 8
Question 2
The transition from sexual immaturity to maturity and the start of reproductive ability are marked by ____.
a. menopause c. puberty
b. sexual intercourse d. prenatal sexual differentiation