state 4 uniqueness of man

Answer 1

Here is a start from the Internet:

The unique characteristics of man can simply be attributed to those features that are exclusively present on humans. These unique features or characteristics include: 1. Highly developed Brain Among all organisms in the universe, the human brain is the most developed.

Answer 2

* well developed brain.
* S shape back bone.
* the existence of thumb.
* man has a larger brain.