Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was
hit by another chair, but not from the same direction.

Regarding the trichromatic theory of color vision, which statement is  most  accurate?               a.  specialized cells in the retina are sensitive to blue-violet, green, and yellow-red.    b.  specialized cells in the retina engage in a process called feature detection.    c.  the theory maintains that receptor cells are grouped in pairs, such as black-white.    d.  the theory us understand why we see afterimages of different colors.