Exposing certain bodily organs or even certain single cells from vertebrates to light sets __________

A) the suprachiasmatic clock.
B) the biological clock.
C) the internal clock.
D) the "circadian clock".

Suprachiasmatic Clock

relates to an internal body clock located in the suprachiasmatic nucleus of the brain, controlling circadian rhythms.

Biological Clock

An innate mechanism in living organisms that controls the timing of behaviors and physiological processes.

Circadian Clock

An internal biological clock regulating the sleep-wake cycle and other physiological processes on roughly a 24-hour cycle.