states of consciousness

Q: Which of the following best describes the stability of sleep cycles?

(a) :  They are innate so they cannot be modified.
(b) :  They are innate but can be modified in times of emergency.
(c) :  They are entirely learned but are difficult to modify.
(d) :  They are entirely learned and, thus, may be easily modified.
(e) :  None of the above
Answer:  They are innate but can be modified in times of emergency.
Explanation:  

Q: Perhaps the best known hallucinogen is

(a) :  cocaine.
(b) :  alcohol.
(c) :  LSD.
(d) :  nicotine.
(e) :  None of the above
Answer:  LSD.
Explanation:  

Q: Recent evidence suggests that THC, the active ingredient in marijuana,

(a) :  is harmless.
(b) :  is physically addictive.
(c) :  is fatal in mild doses.
(d) :  accumulates in fatty tissue.
(e) :  None of the above
Answer:  accumulates in fatty tissue.
Explanation:  

Q: Which stage of sleep typically has spindles?

(a) :  first
(b) :  second
(c) :  third
(d) :  fourth
(e) :  None of the above
Answer:  second
Explanation:  

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