Our sleeping-waking cycle follows a(n)_________ rythm.

Question

Quizplus · Accepted Answer

The terms in the options refer to different types of biological rhythms. Infradian rhythms have a period longer than a day (e.g. menstrual cycle), diurnal rhythms are active during the daytime and inactive at night, ultradian rhythms have a period shorter than a day (e.g. hunger cycles). Circadian rhythms are biological rhythms that repeat approximately every 24 hours and are synchronized with the light-dark cycle of the environment, such as our sleeping-waking cycle. Therefore, the best choice is B)circadian.

Our Sleeping-Waking Cycle Follows A(n)_________ Rythm