An XYY complement of sex chromosomes is associated with which of the following characteristics?
a. problems perceiving spatial relations c. below-normal intelligence
b. short stature d. susceptibility to heart defects
c
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The most frequently reported sexual behavior among gay males is anal sex
a. True b. False Indicate whether the statement is true or false
In comparative studies of true smiles (with emotion of happiness) and lie smiles (without emotion of happiness), it was found that:
a. there was no difference between the two b. children are better at producing lie smiles than adults c. the main difference was in the use of facial muscles around the eyes d. the main difference was in the use of facial muscles around the mouth
Which of the following is true about infant growth?
a. There is no consistency across infants. b. Shorter than average infants tend to speed up in growth. c. Taller than average infants continue to speed up in growth. d. Shorter than average infants slow down in speed of growth.
The growth spurt for girls typically begins at age _________
a) 9. b) 12. c) 10. d) 15.