After age 8, girls __________ than boys
A) are slightly shorter and lighter
B) have slightly more muscle
C) have slightly less body fat
D) begin accumulating fat at a faster rate
D
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Securely attached children excel at achievement-oriented tasks because, when compared with others, they are
a. from wealthier families. b. more forgetful of their failures. c. more intelligent. d. more eager to apply their abilities.
When a person perceives a threat in the environment, the ____ is activated
a. ?somatic nervous system b. ?sympathetic nervous system c. ?limbic system d. ?parasympathetic nervous system
Which of the following statements about preventing childhood injuries is true?
A) About 27 percent of infant seats are improperly used. B) As early as 2 or 3 years of age, parents should begin relying on children's knowledge of safety rules. C) Even though they know better, many parents and children behave in ways that compromise safety. D) About 40 percent of U.S. parents fail to place their preschoolers in car safety seats.
Which of the following is true regarding statistics?
a. They guide the conclusions scientists draw from research. b. They cannot provide definitive conclusions that researchers can draw on to generate theories. c. They are generally considered optional when conducting an experiment or designing a test. d. They often interfere with a scientist's ability to organize and describe data.