Question

these three pictures show how the pupils of the eyes react to light. light is a stimulus. the top picture shows how your pupil might look in a dark room. the bottom picture shows how your pupil might look in bright light. the middle picture shows the eye in normal light. 1. in bright light, what happens to the size of your pupils? 2. in dim light, what happens to the pupil size? 3. how do you think this reaction by the pupil helps a person?

Explanation:

1. In bright light, the pupils constrict (get smaller) to reduce the amount of light entering the eye.
2. In dim light, the pupils dilate (get larger) to allow more light to enter the eye.
3. This reaction helps protect the retina from damage by excessive light in bright - conditions and improves vision in low - light conditions by allowing more light to reach the retina.

Answer:

1. The pupils constrict (get smaller).
2. The pupils dilate (get larger).
3. It protects the retina from excessive light in bright conditions and improves vision in low - light conditions by allowing more light to reach the retina.