Which of the following statements concerning the maturation of the reproductive system is true?

Question

Quizplus · Accepted Answer

In the first months of menstruation, girls cannot predict when they ovulate. It takes several cycles for ovulation to become regular and predictable. Controlling one's fertility through tracking ovulation requires an understanding of one's ovulation patterns, which usually takes time to develop. Therefore, option A is incorrect.

Answer: B
 Boys' initial ejaculations (during puberty) usually do not contain sufficient sperm to fertilize an egg. The first few semen ejaculations are often free from sperm, called pre-ejaculate, as they are initially prepared for ejaculation by the Cowper's gland. Regular production of semen takes a few months to develop. Therefore, option B is incorrect.

Answer: D
 At about age 13-14, boys have their first spontaneous ejaculation, which usually occurs at night (nocturnal emission). Boys start to produce sperm during puberty, and spontaneous ejaculation begins after the production of mature sperm. Therefore, option D is incorrect.

Which of the Following Statements Concerning the Maturation of the Reproductive