David has a problem with his vision. He sees very well but everything is black and white. The problem is most likely with what part of his eye?
A) the cornea
B) the cones
C) the lens
D) the fovea centralis
E) the retina

Question

Quizplus · Accepted Answer

Cones are responsible for color vision, and if they are not working properly, it can cause a person to see in black and white. The other parts listed (cornea, lens, fovea centralis, and retina) may impact vision, but they are not directly related to color vision.

David Has a Problem with His Vision