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The function of iris in the eyes of frog...

The function of iris in the eyes of frog is to

A

Refraction of light rays

B

Alter the size of the pupil

C

Move the nictitating membrane

D

Move the lens forward and backward

Text Solution

Verified by Experts

The correct Answer is:
B
The muscles associated with the iris regulate the amount light entering the eyeball by varying the size of the pupli.
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