In order to study sleep in natural conditions, researchers took people out to camp in the woods for one week. What did they discover about the influence of natural light on the participant’s biological clocks?
a) No change was noted in their biological clocks.
b) It shifted the increase and decrease of melatonin in their bodies to 2 hours earlier to correspond with the natural light-dark conditions.
c) It shifted the increase and decrease of melatonin to 2 hours later each night.
d) Their biological clocks were reset so they were sleepy at 5 p.m. and wide awake at noon.
Answer: B
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The ______________ stage covers the first two months of pregnancy
Fill in the blank(s) with correct word
Joel's friends describe him as competitive, impatient, and having a strong sense of time urgency. Joel might be said to have a(n):
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