The "blind spot" in our visual field is due to the fact that there are no rods or cones in the tiny area where the optic nerveexits the eye.
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Q322: Some animals, such as snakes and insects,
Q323: The human eye is specialized to detect
Q324: Psychologists have found that the effects of
Q325: The optic disk is rich in rods
Q326: The preliminary processing of visual data in
Q328: Cones adapt much more slowly than do
Q329: Cones operate best under dim light conditions.
Q330: In a process called accommodation, the lens
Q331: The iris is the black opening in
Q332: Before visual information is sent to the
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