Around 2:00 in the afternoon, Jay gets tired and takes a nap. Jay's level of energy that varies with time of day is explained by which concept?
A) circadian cycle
B) sleep-wake cycle
C) seasonality cycle
D) lunar cycle
E) high-low cycle

Question

Quizplus · Accepted Answer

Jay's level of energy varying with time of day refers to his circadian rhythm, which controls the regular cycling of various physiological processes over a 24-hour period.

Around 2:00 in the Afternoon, Jay Gets Tired and Takes