Which of the following statements about infertility is true?
a) In the West, from about the 4th century BCE to the 1800's, the reigning explanation for infertility was based on a theory that both women and men must produce a seed in order for conception to occur, and that the seed was released through orgasm.
b) Rates of infertility in the United States have been inconsistent over the past century.
c) Rates of infertility in the United States have been about 20%–25% of couples.
d) A worldwide assessment of infertility between 1990 and 2010 found that rates had stayed consistent at about 30%–35%.
Answer: a
You might also like to view...
Which of the following is NOT an example of reinforcing a behavior?
a. praising a dog for rolling over c. ringing a bell before a dog rolls over b. patting a dog for rolling over d. giving a dog a "biscuit" for rolling over
Jenelle is giving her husband directions. Based on what you know about the differences between males and females, Jenelle is likely to __________ when finding the way to the new restaurant.
A. use landmarks B. use vectors C. only use a map D. go by sight
Parents in the United States are more likely to encourage higher __________ levels, while Asian parents are more likely to encourage greater __________
a) passivity; activity b) neuroticism; social potency c) activity; passivity d) social potency; neuroticism
Comparing preadolescent fifth graders to adolescent eighth graders, researchers found that the percentage of time participants experienced as "very happy" __________.
A. increased by 60% B. increased by 20% C. decreased by 30% D. decreased by 50%