(3) Explain the functions of pupil, retina and iris in the eye.
Iris
Pupil
Retina
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Answer:
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Explanation:
1) Light passes through the cornea covering the eye which refracts it. 2) The iris regulates the size of the pupil which controls how much light is allowed to enter the eye. 3) Behind the pupil is the lens that focuses light (or an image) onto the retina .
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