Petra walks into a brightly lit psychology lab to participate in an experiment involving the ability to perceive the colors of the rainbow. which photoreceptors will be most useful during this experiment?

 The correct answer is :  cones

Explanation:  At the bottom of the eye there are millions of cells like cones and rods that collect the different elements of the spectrum of sunlight and change them into electrical impulses that then send them to the brain through the optic nerves. The cones are concentrated near the retina. The cones are responsible for the color vision.

your answer is rising unemployment and inflation.