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Author Question: Explain why it is unlikely that the sleep-waking cycle is controlled by a blood-borne chemical ... (Read 19 times)

captainjonesify

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on: Jun 22, 2018
Explain why it is unlikely that the sleep-waking cycle is controlled by a blood-borne chemical factor.
 
  What will be an ideal response?

Question 2

A stimulus that resets an internal biological clock is termed a ________.
 
  Fill in the blank with the appropriate word.


bbburns21

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Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: Sleep could be the result of depletion of a wakefulness-promoting factor, whereas waking could result from depletion of a sleep-inducing factor. A key difficulty for this theory is that the hemispheres of the dolphin show alternating sleep-waking patterns.

Answer to Question 2

Answer: zeitgeber


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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

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