Thomas Young's theory of color vision

Cones are the special cells responsible for

In opponent-process theory, there are _____ primary colors.

Mateo has trouble seeing colors because the cones in his eyes do not work properly. When Mateo does see color, he sees primarily in blues, yellows, and shades of gray and confuses reds and greens. Mateo suffers from

Where is the retina located?

What are the three primary colors of light?

A highly saturated red color would contain _____ wavelengths.

Rods are visual sensory receptors responsible for