Q. The most apparent change during the evolutionary history of Homo sapiens is traced in
A) Loss of body hair
B) Walking upright
C) Shortening of the jaws
D) Remarkable increase in the brain size
Explanation
[Solution from source] Across the human lineage the most marked trend is the steady rise in cranial capacity, from about 650-800 cc in Homo habilis, to about 900 cc in Homo erectus, to about 1400 cc in Homo sapiens. Upright walking appeared early and changed little afterwards, so it is not the most apparent trend through the lineage. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.