If Our Circadian Clocks Are Not Reset Each Morning by Exposure

question 521

Multiple Choice

If our circadian clocks are not reset each morning by exposure to light, they

• A)still run exactly on a 24-hour cycle
• B)tend to run on a 12-hour cycle
• C)tend to run a cycle that is a little shorter than 24 hours
• D)tend to run a cycle that is a little longer than 24 hours

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