The specialized organ that provides nourishment for the developing baby is called the __________
a) placenta.
b) uterus.
c) umbilical cord.
d) embryo.
a
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The degree of genetic similarity between identical twins is ______.
A. 25% B. 50% C. 85% D. 100%
Typical parents give their sons toys that emphasize __________
A) cooperation B) nurturance C) competition D) physical attractiveness
What illegal substance, when used by pregnant women, led to an epidemic of thousands of "crack babies"?
a) marijuana b) amphetamines c) cocaine d) AZT
You are acquainted with Colin and his wife. One day, Colin says something very insulting to you, which makes you very angry with him. Later, when you meet his wife on the street, you also feel anger toward her. This scenario is an example of
A) ?sensory preconditioning. B) ?blocking. C) ?occasion setting. D) ?higher-order conditioning.