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

The three aspects to the perception of light are brightness, color, and

Where is the retina located?

A highly saturated red color would contain _____ wavelengths.

Rods are visual sensory receptors responsible for

Which of the following statements is true about color blindness?

According to the textbook, _____ have greater odds of inheriting color-deficient vision than _____.