In a human eye, helps the to contract and expand and thereby controls the amount of light entering our eye.

eyelens

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ciliary muscle

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iris

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pupil

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Solution

The correct options are
C iris
D pupil
Iris is a dark muscular diaphragm which is found behind the cornea. It is responsible for controlling the amount of light entering our eye by regulating size of pupil.

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Similar questions

Amount of light entering in human eye is controlled by:

The iris controls the amount of light entering the eye.

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