Which of the following is the function of the iris of the mammalian eye?

Which of the following is the function of the iris of the mammalian eye?
  • A.
    closes and opens the eye
  • B.
    Absorbs dangerous rays from sunlight
  • C.
    regulates the amount of light entering the eye
  • D.
    bringing light rays to focus on the retina
Correct Answer: Option C
Explanation
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