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    Biology Exploring Study Set 1
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    Exam 45: Control of Animal Processes: Neural Control
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    What Is the Function of the Iris
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What Is the Function of the Iris

Question 230

Question 230

Multiple Choice

What is the function of the iris?


A) to keep the lens under tension to allow for image focusing
B) to control the amount of light entering the eye
C) to focus the image on the retina
D) to respond to particular colours

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