Which of the Following Statements About Biological Rhythms Is Correct

question 23

Multiple Choice

Which of the following statements about biological rhythms is correct?

• A)Menstrual cycles are examples of circadian rhythms
• B)Circadian rhythms are driven by pacemakers entrained by light and dark cycles
• C)Jet lag is a result of desynchronization of the internal clock from external time cues
• D)Both menstrual cycles are examples of circadian rhythms and circadian rhythms are driven by pacemakers entrained by light and dark cycles are correct
• E)Both circadian rhythms are driven by pacemakers entrained by light and dark cycles and jet lag is a result of desynchronization of the internal clock from external time cues are correct

---

Definitions:

Temporal Summation

A mechanism of signal transmission in neurons where multiple signals are combined over a period of time to generate a larger response.

Muscle Fibers

Muscle fibers are the individual contractile units of muscle tissue, made up of myofibrils and encapsulated in a sarcolemma, that facilitate body movements through contraction and relaxation.

Skeletal Muscle

A type of striated muscle tissue attached to bones, responsible for voluntary movements of the body.

Motor Neurons

Nerve cells that originate in the brain or spinal cord and transmit signals to muscles, inducing movement.