KVPY SB SX Exam 2011 Question Paper

Question : 119 of 120

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Nocturnal animals have retinas that contain

a high percentage of rods to increase sensitivity to low light conditions
a high percentage of cones so that nocturnal color vision can be improved in low light conditions
an equal number of rods and cones so that vision can be optimized
retinas with the photoreceptor layer present in the front of the eye to increase light sensitivity

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