Question

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

• A. Increasing brain capacity
• B. Upright posture
• C. Shortening of jaws
• D. Binocular vision

Answer 1

The correct option is A

Increasing brain capacity

Binocular vision, smaller jaw, and upright position are the main adaptations that led to the evolution of man from its ancestors. But, during human evolution major and most significant changes occurred in the cranial capacity. In living modern man, the cranial capacity is about 1450 cc compared to the 500 cc in Australopithecus. Increased cranial capacity accommodates larger brain and forms the basis of the social, cultural and educational evolution of man.