Trichromatic theory states that in the retina, there are three kinds of
A)rods.
B)phosphenes.
C)ganglion cells.
D)cones.

Question

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The trichromatic theory, also known as the Young-Helmholtz theory, posits that the human eye has three types of cones sensitive to different wavelengths of light, which correspond to the colors red, green, and blue. These cones are responsible for color vision.

Trichromatic Theory States That in the Retina, There Are Three