The rhythms of sleep and waking
A. Coincide with cycles of the moon.
B. Are considerably shorter than 24 hours.
C. Are about 24 hours long.
D. Average around 36 hours.
Answer:C
The rhythms of sleep and waking
A. Coincide with cycles of the moon. B. Are considerably shorter than 24 hours. C. Are about 24 hours long. D. Average around 36 hours.