15-05-2022
Biology

contestada

In dim light the iris ___ and the pupil gets bigger in bright light, the iris expands and the pupil gets smaller.

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LinSummer LinSummer

15-05-2022

Explanation:

in dim light the iris contract ,the the pupils widens to allow more light to enter the eye,in bright light the iris relaxes and size of pupil becomes smaller to reduce amount of light entering the eye. NOTE: the muscle do not expand they either contract and relaxes

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