Which of the following is NOT true about male infertility?
A) Low sperm count can be caused by wearing excessively tight underwear.
B) Exposure of the scrotum to radiation can cause infertility in men.
C) Exposure of the scrotum to intense heat or cold can cause infertility in men.
D) Male infertility problems account for only 10 percent of infertility cases.
Question 2
The most common cause of female infertility in the United States is
A) pelvic inflammatory disease.
B) gonorrhea.
C) polycystic ovary syndrome.
D) endometriosis.