What is the optic disk?
A) a tiny spot in the center of the fovea where there is a high concentration of rods and cones
B) the portion of the lens which focuses incoming light
C) the point at which the optic nerve fibers leave the back of the eye
D) a transparent membrane which lies just behind the pupil of the eye and that helps funnel light waves to the retina
Correct Answer:
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Q316: Bob had perfect vision until he was
Q317: The process by which the lens changes
Q318: The sensory receptors for vision are:
A) found
Q319: What causes nearsightedness, farsightedness, and astigmatism?
A) The
Q320: The _ thickens or thins to focus
Q322: Rods are to cones as _ is
Q323: Which type of sensory receptors are involved
Q324: Each _ cell receives information from its
Q325: What happens when rods and cones are
Q326: The specialized neurons called _, which encode
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