What percent of abortions are considered unsafe in developing regions of the world?
a. 32% c. 72%
b. 52% d. 92%
ANS: D
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Oogonia have ____ chromosomes
a. thirteen c. forty-six b. twenty-three d. sixty-one
What is one theory to explain why "gentlemen prefer blonds?"
a. A controversial study demonstrated that women with blonde hair, were more tolerant of their partners' extramarital affairs. b. A blonde's lighter skin makes it easier for others to detect medical conditions, such as anemia and cyanosis; therefore, blondes advertise their health and fertility more readily than brunettes. c. Studies show that individuals with blonde hair tend to be more fun and energetic. d. Women with blonde hair are perceived by men to be less intellectually threatening, than women with darker hair.
What likely contributes to the fact that interracial couplings are not very common in the U.S.?
a. Some states still outlaw interracial marriage, thus discouraging interracial dating. b. Offspring from interracial parents have a higher incidence of congenital defects. c. Racial segregation laws were abolished only a few decades ago, thus, most young couples are uneasy with the idea of interracial dating. d. People are most likely to fall in love with those who have similar values and backgrounds.
The term "effacement" refers to ____
a. contractions that are 5 minutes apart or less b. the pressure caused by the head of the baby pressing on the cervix c. the softening and thinning of the cervix d. a baby that is in the "posterior" position during labor and delivery