Question: what are the structural and functional differences between rods and cones?
Answer: Rods and Cones are the photoreceptors found in the eye, rods have rod-like structure and provide twilight vision, while cones are of the cone shape, fewer in number and provides the vision in the day or bright light. Rods are found around the boundary of the retina, whereas cones are there in the centre of the retina.