Answer:
Both presidents and kings are heads of state, but they reach their positions in very different ways. Numerous types of government can be presided over by a president, ranging from constitutional democracies to dictatorships. ... A king is a head of state who inherits his position from his family.
I would go with C. 51% I hoped I helped :D
Environmental factors interact with Circadian rhythms to regulate sleep cycles, Daylight triggers a process that induces the pineal gland to end melatonin production; alert in the early afternoon; alert in the late afternoon.
Circadian rhythms are regulated by the brain's Suprachiasmatic nuclei (SCN), which are located in the hypothalamus. Circadian rhythms regulate daily biological arousal. Circadian rhythms are physical, mental, and behavioral changes that follow a daily cycle.
Circadian rhythms are intrinsic, biological rhythms that can be entrained such as physical activity and work cycles. A pair of cell clusters in the hypothalamus that controls circadian rhythm. Environmental cues can help keep circadian rhythm synchronized. The most important environmental cue is sunlight.
To learn more about Circadian rhythms here
brainly.com/question/857658
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Answer:
look up the worksheet online
Explanation:
if it was me i would type in the entire thing at the bottom of the page that says like where its from and stuff or the whole title in your search browser and try to find the answers for it somewhere
