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Compare the functioning of rods to cones in the visual system. Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a b C d a b C d Rods collect all light hitting the retina and then cones process the resulting information to make color vision Why are birds, unlike humans, able to see ultraviolet light? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. They have relatively longer optic nerves than humans e Rods and cones detect the same wavelengths of light, but cones are found in the center of the retina, and rods on the periphery Rods detect shades of grey and black, cones detect color Cones detect movement and rods detect the shape of things Test Bank Question 13.9 Their receptor cells are specialized to capture photons within this range of wavelengths They have only cones and no rods, and can therefore see more color Their eyes are more evolutionarily advanced than the human eye Bird eyes have greater convergence of cones onto ganglionic cells