Image: Circadian rhythm labeled
Circadian_rhythm_labeled.jpg (400 × 267 pixels, file size: 15 KB, MIME type: image/jpeg)
Description: Diagram illustrating the influence of dark-light rythms on circadian rythms and related physiology and behavior.
Title: Circadian rhythm labeled
Credit: Circadian Rhythms Fact Sheet
Author: National Institute of General Medical Sciences
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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