Question

Homeostasis and Feedback
Reading 1:

The pupil of the eye responds to changes in light. Light has to reach the back of the eye to allow us to see. However, too much light reaching the back of the eye makes seeing harder and can damage the eye. When a person enters a dark room, the constriction of the pupil is stopped and the pupils in both eyes will dilate, allowing all the available light to enter the eye. On the other hand, when a person walks outside in bright sunlight, too much light reaches the back of the eye. The pupils in both eyes constrict, allowing only enough light to enter. Constriction and dilation of the pupil is critical to all organisms that use vision. Nocturnal animals, such as jaguars, must be able to use the light of the moon to hunt. On the other hand, diurnal animals, such as deer, must be able to see predators even in bright light.

Q. is this a positive or negative feedback?

Answer 1

Answer:

you are right

Explanation:

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