Which of the following is not true about internal clocks?
A) The clock for the sleep/wake circadian cycle consists of a few genes and their protein products.
B) The sleep/wake clock feedback loop must be reset by light each day.
C) Clocks involved in heart activity are not entrained by the SCN.
D) There are clocks outside the brain that control the activities of the body's organs.
Correct Answer:
Verified
Q21: The "basic rest and activity cycle" discussed
Q22: Melanopsin is:
A)A photopigment
B)Found in 1% of the
Q23: In many cultures a siesta,coffee break,or work
Q24: Ultradian rhythms are:
A)Shorter than circadian rhythms
B)Longer than
Q25: Because the _ is/are not involved in
Q27: To maximize your ability to pay attention
Q28: In phase delay an individual goes to
Q29: Melatonin is:
A)A hormone that induces sleep
B)A hormone
Q30: Which of the following is not true
Q31: Melatonin is produced in the:
A)Pineal gland
B)Hypothalamus
C)Adrenal glands
D)SCN
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