Why is it thought that advances such as agriculture,literacy,and urbanization have not been accompanied by additional increases in brain size?
A)The earliest Homo sapiens were as intelligent as contemporary humans.
B)Although brain size has remained constant,brain density has increased.
C)The physiological cost of a bigger brain exceeds its benefit.
D)More efficient neuronal connections account for modern human advancements.

Question

Quizplus · Accepted Answer

A larger brain requires more energy to maintain, which may not have been worth the additional cognitive benefits. It's possible that the costs of a larger brain outweighed the benefits during human evolution.

Why Is It Thought That Advances Such as Agriculture,literacy,and Urbanization