Question

Two kinds of light-sensitive receptor cells reside at the back of the retina; rods are responsible for _________ while cones are responsible for

Answer 1

Explanation:

Rods are responsible for vision at low light levels (scotopic vision). They do not mediate color vision, and have a low spatial acuity. Cones are active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity.