Reproductive photorefractoriness in Syrian hamsters is best characterized by
A) the spontaneous regression of the hamsters' testes.
B) long day typical behavior but short day typical physiology.
C) arrhythmic activity rhythms.
D) the spontaneous re-activation of the reproductive system.
Correct Answer:
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Q11: Which term is not used to describe
Q12: Melatonin is produced in the
A) testes.
B) parathyroid
Q13: Which is not one of the main
Q14: When the suprachiasmatic nucleus is removed
A) all
Q15: Which of the following act as negative
Q17: Lesioning of the suprachiasmatic nucleus (SCN) in
Q18: List four characteristics of biological clocks.
Q19: Describe the two ways that biological clocks
Q20: List three types of nonphotic zeitgebers.
Q21: Why are circadian rhythms referred to as
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