When you drive a car, you have two pedals (in an automatic transmission!). One of them, the accelerator, makes the car move faster, and the other, the brake, slows the car down. In your peripheral nervous system,
the __________ is like the accelerator and the __________ is the brake.
a. sympathetic nervous system; parasympathetic nervous system
b. parasympathetic nervous system; sympathetic nervous system
c. autonomic nervous system; sympathetic nervous system
d. afferent nervous system; efferent nervous system
Answer: A
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Ulysses has been diagnosed with schizophrenia. If PET scans were done to measure his brain's activity, which area would probably be underactive?
A. The visual cortex B. The deepest portions of the brain-the medulla and reticular activating system C. The frontal lobes D. The hypothalamus and pituitary
Hypothetically, 9% of the variation of skill among dentists is accounted for by the test that they took in order to pass the dental board examination. What is the validity coefficient of the test?
a. 0.03 b. 0.3 c. 0.9 d. 3.0
Molly has just taken a virginity pledge. Compared to girls who did not take this pledge, Molly is more likely to:
a. Abstain from sexual intercourse until marriage. b. Have an unplanned pregnancy c. Use contraception if she "breaks" her pledge. d. Masturbate more frequently.
Anaclitic depression was the term used by Renee Spitz in the 1940s to describe the pattern of behavior he saw in ____
a. emotionally deprived infants b. abused toddlers c. pregnant adolescents d. bereaved children