Biology, 28.08.2019 17:30 dtgwrth4150

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. ? more efficient neuronal connections account for modern human advancements.
d. ? the physiological cost of a bigger brain exceeds its benefit?

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