The greatest adaptive, perceptual advantage to having two ears rather than one is that
A) we are more easily able to localize sounds with two ears.
B) the head does not cast a sound shadow when there are ears on opposite sides.
C) sounds seem more pleasant when heard with two ears.
D) the cochlea functions more efficiently if both ears are functioning properly.

Question

Quizplus · Accepted Answer

Having two ears allows us to compare the timing and intensity of sounds arriving at each ear, which enables us to localize sounds in space. This is particularly important for survival, as it helps us identify the location of potential dangers or prey. While the absence of a sound shadow is also a factor in binaural hearing, it is not as significant as the ability to localize sounds. There is no evidence to suggest that sound quality or cochlear efficiency is improved with two ears.

The Greatest Adaptive, Perceptual Advantage to Having Two Ears Rather