In North America and Europe, breast development in girls entering puberty begins at about what age?
a. 9 c. 13
b. 11 d. 15
Question 2Which of the following makes substances that aid in sperm mobility?
a. the seminal vesicles c. spermarche
b. the prostate gland d. adrenarche
Question 3Which of the following is not a typical effect of puberty in boys?
a. the forehead becomes more prominent c. the chest and shoulders grow
b. the jaw grows forward d. the development of more body fat
Question 4The activation of the hypothalamus-pituitary-gonadal system results in
a. adolescence. c. pregnancy.
b. puberty. d. hormonal irregularities.
Question 5The hormone that plays an important role in regulating menstruation and preparing the uterus for a fertilized egg is
a. testosterone. c. progesterone.
b. estrogen. d. dehydroepiandrosterone (DHEA).
Question 6Anorexia nervosa is associated with all of the following except
a. damage to the heart c. the cessation of menstrual periods
b. loss of bone mass d. damage to the esophagus
Question 7The condition in which people intentionally starve themselves and undergo severe weight loss is called _____
a. anorexia nervosa. c. bingeing
b. bulimia. d. marasmus
Question 8Which of the following is not associated with primary sexual characteristics during puberty?
a. changes associated directly with reproduction c. facial changes in boys
b. maturation of the gonads d. anatomy of the genitals
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