____________ rhythms reflect the adaptation of organisms to the many changes associated with the rotation of the earth on its axis.
A) Seasonal
B) Circadian
C) Infradian
D) External

Question

Quizplus · Accepted Answer

Circadian rhythms are biological rhythms that occur approximately every 24 hours and are driven by an internal clock. These rhythms, such as sleep-wake cycles, reflect adaptations to the daily changes associated with the rotation of the earth on its axis. Seasonal rhythms (A) correspond to changes in the environment that occur over the course of a year, such as temperature or daylight length. Infradian rhythms (C) refer to biological rhythms that occur less frequently than once a day, such as menstrual cycles or hibernation. External rhythms (D) could refer to any environmental changes that impact an organism's behavior, but does not specifically describe the temporal nature of biological rhythms.

____________ Rhythms Reflect the Adaptation of Organisms to the Many