Which of the following is a physiological change in men as they age?
A. Their testes cease to manufacture sperm.
B. Their testes grow bigger.
C. Their arteries harden.
D. Their sexual organs become insensate.
Answer: C
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Infertility problems affect about ________ couples of reproductive age
a. 2% b. 4% c. 10% d. 37%
A review of all types of treatment programs concludes that
A. the rate of reoffending after 20 years is about 80 percent for all types of treatment. B. cognitive-behavioral therapies (CBT) based programs are consistently shown to be effective. C. such programs did not lead to sexual recidivism at all. D. classical behavioral programs have the greatest significant effect.
Which of the following is a key distinction regarding infant testing?
a) Scores obtained in infancy have little correlation school-age scores, except for children with very low scores in infancy. b) Scores obtained in infancy have little correlation school-age scores, except for children with very high scores in infancy. c) Scores obtained in infancy have a strong correlation school-age scores, except for children with very low scores in infancy. d) Scores obtained in infancy have a strong correlation school-age scores, particularly for children with very high scores in infancy.
Which of the following to the ability of sperm to move when ejaculated?
A. Fertility B. Mobility C. Viability D. Sustainability E. Motility