Humans are unique in that they have the:
A)largest brain of any animal species.
B)most complex spinal cord of any animal species.
C)largest brain-body size ratio of any living animal.
D)most advanced nervous system of any living animal.

Question

Quizplus · Accepted Answer

Humans have the largest brain-body size ratio of any living animal. This means that our brains are larger in proportion to our body size than any other animal. This is one of the things that makes us unique and allows us to have such complex cognitive abilities.

Humans Are Unique in That They Have The