Examlex
What is the difference between a food chain and food web?
Zeitgebers
Environmental cues like light and temperature that regulate the biological clock of organisms, influencing sleep and wakefulness cycles.
Sunrise
The time of day when the upper limb of the Sun appears on the horizon in the morning.
Sunset
The time in the evening when the sun disappears below the horizon, marking the transition from day to night.
Suprachiasmatic Nucleus
is a small region of the brain located in the hypothalamus that acts as the primary circadian clock, regulating sleep-wake cycles and other circadian rhythms.
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