"Crack" cocaine is commonly preferred by cocaine addicts over intranasal use of cocaine because "crack"
a. achieves higher concentrations of cocaine in the brain more rapidly
b. is less toxic to the body than intranasal cocaine
c. induces less severe side effects than intranasal cocaine
d. all of the above
a
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In what way does addiction change someone's motivation for using a substance?
a. The user seeks the substance to try to increase tolerance b. The user seeks the substance to try to increase withdrawal. c. The user "wants" the substance but does not "like" it as much as before. d. The user "likes" the substance but does not "want" it as much as before.
What is the most important factor in determining what crosses the "placental barrier"?
a. The size of a molecule b. The age of the fetus c. The duration of the pregnancy d. The age of the mother
The optic nerves from the right and left eye initially meet at the ____
a. optic chiasm b. lateral geniculate nucleus c. hypothalamus d. cerebral cortex
According to the text, when does ethnic awareness begin to develop?
a. in infancy b. in early childhood c. during the elementary school years d. during adolescence