Which of the following statements about breast feeding is correct?
a. Mothers who breast-feed do not differ in any significant way from mothers who do not breast-feed.
b. About 80% of North American mothers now breast-feed their infants, at least in early infancy.
c. Teenage mothers are more likely to breast-feed than older mothers.
d. Mothers from low-income families are more likely than upper-income families to breast-feed, primarily for economic reasons.
B
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Which of the following statements about stereotypes and prejudice is false?
a. Stereotypes can be expressed outwardly and very explicitly. b. All stereotypes are of negative characteristics. c. Stereotypes are often experienced implicitly. d. Prejudice has become increasingly unpopular in the United States.
Which of the following best explains afterimages?
a. trichromatic theory b. opponent-process theory c. color-deficient vision d. monochrome color blindness