25.4–25.8: Male and female reproductive systems have important similarities and differences.

Genetically, the production of eggs barely differs from sperm production, but fewer eggs than sperm are produced, and eggs are much larger than sperm.

Question 25.18

Which three sets of accessor y glands add secretions to the semen in human males?

  • a) the seminal vesicles, the prostate gland, and the bulbourethral glands
  • b) the ejaculatory duct, the prostate gland, and the vas deferens
  • c) the seminal vesicles, the prostate gland, and the urethra
  • d) the seminal vesicles, the prostate gland, and the epididymis
  • e) the ejaculatory duct, the prostate gland, and the bulbourethral glands

Question 25.19

When individual females mate with multiple males within short periods of time:

  • a) a male that produces more sperm than the other males has an increased probability of reproductive success.
  • b) internal fertilization cannot occur.
  • c) there is selection for a reduction in size of the male testes.
  • d) the male gametes experience reduced desiccation.
  • e) All of the above are correct.

Question 25.20

The tissue thatin males develops into the penis, in females develops into the:

  • a) vagina.
  • b) labia.
  • c) clitoris.
  • d) oviduct.
  • e) ovary.

Question 25.21

The completion of meiosis II in the oocyte of human females occurs:

  • a) before birth.
  • b) during menstruation.
  • c) after the oocyte is fertilized by a sperm.
  • d) a few hours before ovulation.
  • e) at ovulation.

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