In some individuals, chronic alcohol use causes physical damage to the body. Whether this occurs depends on all of the following factors EXCEPT
a. blood alcohol levels during drinking periods
b. the type of alcohol consumed
c. genetic vulnerability.
d. how frequently drinking binges occur, how long they last, and how much time elapses between binges.
b
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The purpose of the myelin that surrounds the axon is to
a. keep nerve cells continually active. b. help electrical currents cross the synapse completely. c. repair neurons within the peripheral nervous system. d. speed the transmission of an impulse down the axon.
The "timing of puberty" effect on visual/spatial cognitive skills affects
a. neither girls nor boys. b. girls but not boys. c. boys but not girls. d. boys and also girls.
Chemical substances in the nervous system that are similar in structure and in action to opiates—such as heroin and morphine—are ________
a. hormones. b. endorphins. c. androgens. d. neurotransmitters.
A recent study by Li (2004) suggests that Chinese children view learning as a ___________ while American children view it as a ___________
A) female skill; male skill B) moral value; practical task to be accomplished C) solitary activity; communal activity D) boring task; fun task