Questions: The adjustable opening in the center of the eye that helps control the amount of light entering the eye is called the A. cornea B. fovea C. pupil D. iris

The adjustable opening in the center of the eye that helps control the amount of light entering the eye is called the A. cornea B. fovea C. pupil D. iris
Transcript text: The adjustable opening in the center of the eye that helps control the amount of light entering the eye is called the $\qquad$ A. cornea B. fovea C. pupil D. iris
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Solution

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The answer is C: pupil.

Explanation for each option:

A. Cornea - The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. It helps to focus incoming light but does not control the amount of light entering the eye.

B. Fovea - The fovea is a small depression in the retina where visual acuity is highest. It is responsible for sharp central vision but does not control light entry.

C. Pupil - The pupil is the adjustable opening in the center of the eye that regulates the amount of light entering the eye. It changes size in response to light intensity, making it the correct answer.

D. Iris - The iris is the colored part of the eye surrounding the pupil. It contains muscles that adjust the size of the pupil, but the iris itself is not the opening.

In summary, the pupil is the part of the eye that adjusts to control the amount of light entering the eye.

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