Alcohol slows down the speed with which messages travel through the nervous system. This is best explained by the fact that alcohol increases the amount of ____ in the brain.?
a. ?GABA
b. ?acetylcholine
c. ?glutamate
d. ?norepinephrine
ANSWER:
a
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When your toes touch something, you feel the sensation 1/20 of a second later. Why? a. The receptors in the toes are slow to react to a stimulus
b. Any action potential takes time to reach the brain. c. You cannot feel something until your nervous system synthesizes neurotransmitters. d. You were probably thinking about something else.
A Dutch study examined 1,338 individuals born at either a gestational age of less than 32 weeks or a weight of 3.3 lbs. or less. Results from this study indicate that at age 9-14, ____ of the group could be characterized as having a severe disability:
a. 0 b. 1% c. 5% d. 10%
Which of the following is not a purpose of statistical procedures?
a. Organizing data b. Summarizing data c. Hypothesizing data d. Communicating data
The gap between heritability identified by behavior genetics and heritability identified by studies at the molecular level is known as _______.
a. the missing molecules problem b. the missing heritability problem c. the nature-nurture problem d. the missing genes at the gap problem