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Suprachiasmatic Nucleus
A small region in the brain's hypothalamus responsible for controlling circadian rhythms.
Biological Clock
A mechanism in living organisms that controls the timing of various physical functions, such as sleep and wake cycles, hormone release, and other bodily functions.
Retina
The light-sensitive layer of tissue at the back of the inner eye, responsible for converting light into neural signals for vision.
Time Zones
Geographically based divisions where the local time is adjusted from the standard time, primarily influenced by the rotation of the earth relative to the sun.
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