AP BIOLOGY

Detailed explanation-1: -It has been suggested that a circadian rhythm of less than 24 hours predisposes one to the morning chronotype while a longer-than-24-hours clock may make for the ‘night owl’ chronotype. In addition to genetics, the daily routine, age, and other health conditions, may all contribute to the chronotype.

Detailed explanation-2: -There are many different examples of circannual rhythms including the pupation rhythm in carpet beetles [1], the urge to migrate in birds [2], hibernation cycles in ground squirrels [3], and cycles of reproductive activity and moulting in ungulates [4].

Detailed explanation-3: -Circadian rhythms may change with the change of place and may also change with age. For example, young woodchucks remain active during the evening only, while their adults remain active almost throughout the day. Similarly, young badgers remain active during the early hours to the middle of the day.

Detailed explanation-4: -Circadian rhythm disorders, also known as sleep-wake cycle disorders, are problems that occur when your body’s internal clock, which tells you when it’s time to sleep or wake, is out of sync with your environment. Your internal clock, called a circadian clock, cycles about every 24 hours.