
A key function of rod photoreceptors is to
A) detect colors.
B) detect fine details in the visual field.
C) detect light under low levels of illumination.
D) detect light under high levels of illumination.
E) detect the texture of the visual scene.
Correct Answer:
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Q20: Which of the following is true of
Q21: Collectively,the rods and cones are known as
A)
Q22: The human retina contains about _ rods
Q23: The optic disk is the location on
Q24: Visual information from the retina is carried
Q26: When a photopigment is exposed to light,the
Q27: The function of the lens is to
A)
Q28: Rods are to cones as
A) color vision
Q29: The _ cell is interposed in the
Q30: The optic nerve is formed by axons
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