Some Researchers Have Suggested That Our 24-Hour Sleep/wake Cycle May

question 2

Multiple Choice

Some researchers have suggested that our 24-hour sleep/wake cycle may partially be a response to a world where the sun rises and sets on a 24-hour cycle.Imagine that the earth is gradually slowing down,and in 10,000 years the sun rises and sets on a 26-hour cycle instead.If you came to this future world you might expect that people would tend to

• A) follow the old cycle and still fall asleep once every 24 hours.
• B) show no consistent wake-sleep cycle.
• C) develop an even shorter 22-hour sleep/wake cycle.
• D) follow the extended cycle set by the sun and fall asleep once every 26 hours.

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Definitions:

Chloride

An anion resulting from the dissociation of hydrochloric acid (HCl), or a compound formed by the combination of chlorine with a metal or organic molecule.

Magnesium

A shiny gray solid, this chemical element has symbol Mg and atomic number 12, known for its lightness and strong structural properties, widely used in alloys.

Chloride

A compound formed with chlorine and another element or group, commonly found in table salt (sodium chloride).