When comparing the brains of rats raised in a rich environment requiring lots of learning and motor behavior with the brains of rats raised as "couch potatoes" (Greenough, et al., 1990), the cerebellums of the more active rats
a. contained more neuronal connections and dendrites
b. contained fewer neuronal connections but more dendrites.
c. were less likely to possess pathological neurotransmitter circuits.
d. were exactly the same as the inactive rats.
a
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As you walk into your dorm room, you notice that your roommate is crying. Why is it difficult to know if she is happy or sad?
A) Her facial expressions are likely to be similar. B) Her physiological reactions are likely to be similar. C) Her nonverbal cues are likely to be similar. D) Because it is impossible to pick up on the physiological responses that distinguish happiness from sadness.
Taylor would like to pursue an undergraduate degree in psychology, but is worried that without a graduate degree, his career choices will be limited. What information would you share with Taylor to help him decide whether or not to pursue an undergraduate degree in psychology?
a. About one-third of undergraduates in psychology obtain jobs that are closely related to the field. b. Graduate degrees are necessary if you plan to teach at the college level, but they are not necessary for clinical psychology work. c. Nearly 25% of all psychotherapists hold undergraduate rather than graduate degrees. d. Nearly all undergraduate psychology majors who do not pursue a graduate degree
Recent studies on the progression of marital satisfaction in 7- and 8-year marriages found that it follows which one of the following patterns?
A) A level line that starts a steep decline after a short while B) A straight diagonal line that starts at a high point and gradually gets lower C) A straight diagonal line that starts at a low point and gradually gets higher D) A U-shape
A human cell normally contains ______ pairs of chromosomes
a. 23 c. 69 b. 46 d. 92