The Internal Pacemaker That Sets Biological Rhythms

question 57

Multiple Choice

The internal pacemaker that sets biological rhythms

• A)Is located in the brain
• B)Is located in the heart
• C)Does not function in the absence of light or other environmental cues
• D)Both is located in the brain and does not function in the absence of light or other environmental cues are correct
• E)None of the choices are correct

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An amount of money that is owed and should be paid.

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