18. At the time of peak height velocity, adolescents grow at about the same rate as:
A. newborns.
B. infants.
C. toddlers.
D. elementary school children.
19. The adolescent growth spurt:
A. generally begins two years earlier for girls than for boys.
B. generally begins two years earlier for boys than for girls.
C. is slower in the early adolescent years, then speeds up around age 15 for boys and girls.
D. proceeds along a smooth and rapid course over the teen years.
20. Which of the following is not characteristic of changes in skeletal structure during puberty?
A. One marker that indicates the termination in growth in height is epiphysis.
B. Bones become more porous and more likely to break.
C. Height gains are attributable more to increases in torso length than leg length.
D.
The growth sequence generally begins with the extremities, then proceeds to the arms and legs, then to
the torso and shoulders.
21. Who is at the greatest risk of developing body dissatisfaction?
A. Callie, an early-maturing, affluent Caucasian girl who compares herself to her friends
B. Miranda, a late-maturing African-American girl
C. John, an early-maturing African-American male who compares himself to his friends
D. Mike, a late-maturing Caucasian male who feels he is not muscular enough
22. One reason for the difference in the body shapes of the sexes is:
A. the timing of the growth spurt.
B. that females tend to be more “left-brained” and males more “right-brained.”
C. differences in the size of the hypothalamus.
D. the difference in the amount and distribution of body fat.
23. Although both sexes experience changes in muscle tissue and body fat, the ratio of muscle to body fat
is:
A. greater in boys than girls.
B. greater in girls than boys.
C. about the same in both genders.
D. greater in early maturing girls than in late-maturing boys.
24. Which of the following girls would probably be least susceptible to feelings of body dissatisfaction due to
the rapid increase in body fat in early adolescence?
A. Suzy, an early maturer
B. Lilly, someone who began dating early
C. Diane, someone from a relatively affluent family
D. Beth, a Black adolescent girl
25. The rapid increase in body fat that adolescent girls experience:
A. leads to a majority of adolescent girls dieting unnecessarily.
B. leads to an increase in healthy eating patterns among adolescent girls.
C. increases vulnerability to feelings of body dissatisfaction for African-American adolescent girls.
D. is seen by the Centers for Disease Control as a major risk factor for obesity among adolescent girls.
26. According to the textbook, the sex difference in athletic performance during early adolescence results
from all of the following except:
A. self confidence
B. body fat
C. hormones
D. diet and exercise