Fourteen-year-old Phil experiences muscle growth and notices the growth of body and facial hair. Which hormone is responsible for this change?
A) estrogen
B) testosterone
C) adrenal androgens
D) thyroxine
Question 2
Charlotte lives in the United States. At 15 years of age, she most likely __________.
A) is in middle adolescence
B) is experiencing a period of rapid pubertal change
C) anticipates full assumption of her adult role
D) has achieved her full adult appearance