Imagine that biologists have discovered an animal that has eyes very similar to human eyes, but that the only receptor cells in the retina are rods; there are no cones. Based on what is known about human vision, you might expect this animal to
A)have poor vision in low illumination.
B)have no color vision.
C)have poor peripheral vision.
D)be able to detect extremely fine details.

Question

Quizplus · Accepted Answer

Rods are responsible for vision in low light and do not mediate color vision; cones are responsible for color vision. Without cones, the animal would not be able to see colors.

Imagine That Biologists Have Discovered an Animal That Has Eyes