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Neural Control and Coordination — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYNeural Control and Coordination2 Marks
Question
Answer briefly:
How does the eye regulate the amount of light that falls on the retina.
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Answer

Pupil is the small aperture surrounded by the iris that regulates the amount of light entering the eye. This expand in case of low light and contract in case of intense light thereby regulating the amount of light falling on the retina.

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