Physical dependence to marijuana has been reliably and consistently demonstrated in laboratory studies
a. True
b. False
Indicate whether the statement is true or false
False
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When a neuron is inactive, more of which of the following exist OUTSIDE the neuron?
a. positive ions b. negative ions c. myelin sheaths d. neuropeptides
An important reason that intimate friendships become more possible during adolescence is that
A) cognitive changes make teens better able to understand another person's thoughts and feelings. B) secondary school offers more sustained contact with fellow students than elementary school. C) parents put more effort into fostering friendships for teenagers than for younger children. D) the limited range of interests among teens makes it more likely they will have interests in common.
Identical twins are ______ times more likely to both show schizophrenia than fraternal twins.
A. 9 B. 6 C. 3 D. 2
Which of the following is NOT characteristic of Zuckerman's "sensation seeking"?
A) Tendency to actively engage environments B) Seeking out highly stimulating activities C) Seeking out novel experiences D) Preferring large crowds of people E) Being attracted to the unknown