'The eyes have these 2 types of receptor cells; one gives color vision, the other black & white vision in dim light'
rods & cones
THE EYES HAVE IT: The eyes have these 2 types of receptor cells; one gives color vision, the other black & white vision in dim light
The eyes have these 2 types of receptor cells; one gives color vision, the other black & white vision in dim light
The eyes have these 2 types of receptor cells; one gives color vision, the other black & white vision in dim light
THE EYES HAVE IT
rods & cones
THE EYES HAVE IT