The main function of this structure is to regulate the amount of light entering the eyeball through the pupil.

Name: The main function of this structure is to regulate the amount of light entering the eyeball through the pupil.
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Question

Quizplus · Accepted Answer

The iris is responsible for controlling the size of the pupil, which regulates the amount of light entering the eye. It does this by contracting or relaxing the muscles in the iris, depending on the brightness of the environment.

The Main Function of This Structure Is to Regulate the Amount