The function of the pupil is to
A) control the amount of light that enters the eye.
B) control eye movements as one tracks a moving object.
C) focus light onto the retina.
D) invert the visual image on the retina.
E) amplify the intensity of light that is passed through the vitreous humor.
Answer: A
Rationale: The function of the pupil is to control the amount of light that enters the eye.
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