Question

A primate that is blind in one eye would have difficulty (1 point)

A) distinguishing between objects on the basis of their color.
B) seeing the full range of colors that a primate with two eyes can see.
C) estimating the distance to an unfamiliar object. D) holding an object in the hand that is on the same side as that eye.

Answer 1

The correct answer is C) estimating the distance to an unfamiliar object

This is fairly common and can even occur to humans when they suddenly lose their eyesight in one eye.

Answer 2

The correct option is C.

Primates are triochromatic, that is, their eyes are equipped to differentiate clearly between three colors, which are blue, green and red. This feature allows them to distinguished between ripe and unripe fruits and to have full wide range of vision. Primates need their two eyes to have a full range of vision, thus when one eye is absent, it drastically affect how far the affected animal can see and makes estimation of distances of objects quite difficult.