During the second trimester, a white, cheeselike substance called ________ emerges on the skin of the fetus.
A. lanugo
B. amniotic fluid
C. vernix
D. chorion
Answer: C
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Anticipating Binet's work on intelligence testing, Cattell replaced Galton's sensorimotor measures of human abilities with assessments of cognitive abilities
a. True b. False
Describe the "restriction of range" problem in twin studies.
What will be an ideal response?
Beta brain wave activity is not a reliable indicator of being awake because
A) this pattern is seen in children but not adults. B) this brain wave pattern also appears during sleep. C) this wave form waxes and wanes during the day. D) it can be induced by certain drugs such as alcohol. E) This wave form is recorded in coma victims.
It would be normal for a child to develop separation anxiety at __________year(s) of age.
A. 1 B. 4 C. 7 D. 8