They should rely less on sight because the deeper you go down the less sunlight the reaches down because it refracts and gets dispersed. So it could be the middle of the day and it would look like the middle of the night down there.
This response helps decrease body temperature. Another example of negative feedback has to do with blood glucose levels. ... If a raise in body temperature (stimulus) is detected (receptor), a signal will cause the brain to maintain homeostasis (response).
