Photoreceptors (rods vs cones) (video) | Khan Academy
https://www.khanacademy.org/science/health-and-medicine/nervous-system-and-sensory-infor/sight-vision/v/photoreceptors-rods-cones
WEBRods and cones are two types of photoreceptors in the eye. Both are specialized nerves that convert light into neural impulses, but they differ in number, location, and function. …
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