As a participant in a classroom debate, a student has been asked to find support for the trichromatic theory of color vision. She would be advised to look at the research that shows there are three

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The trichromatic theory of color vision, proposed by Young and Helmholtz, suggests that the human eye has three types of cones that are sensitive to red, blue, and green light. This theory explains how we perceive color through the combination and variation in strength of these three colors.  Although the three types of cones each respond to a range of wavelengths, they are each most sensitive to light at a particular wavelength.

As a Participant in a Classroom Debate, a Student Has