Compared to adults, neonates ________________________
a. spend a lower proportion of their sleep in REM
b. enter REM sooner after falling asleep
c. spend less time sleeping
d. do not experience eye movements under the eyelids or brain-wave changes during REM sleep
Answer: B
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What causes conduction deafness?
a. Obstruction to the bones connected to the eardrum b. Damage to the cochlea, hair cells, or auditory nerve c. Damage to the corpus callosum d. Damage to the auditory cortex
Comparing people from different birth cohorts at the same time is which kind of study?
a. Retrospective b. Introspective c. Cross-sectional d. Longitudinal
If the concordance rate for alcoholism were 50 percent among identical twins, which of the following would be true? a. If you inherit the gene that encodes alcoholism, you will develop alcoholism
b. If there is no alcoholism in your family, you will never develop a problem with alcoholism. c. If your father suffers from alcoholism, you will not develop the problem as long as he is not involved in raising you. d. If your twin struggles with alcoholism, you have an increased chance of having the same problem, but ultimately whether you do is also influenced by environmental factors.
The most widely used illegal drug is
A) alcohol. B) marijuana. C) cocaine. D) tobacco.