Question

what makes up ( approx) 80°/° of our brains volume?​

Answer 1

Answer:

The preponderance of the cerebral cortex (which, with its supporting structures, makes up approximately 80 percent of the brain's total volume) is actually a recent development in the course of evolution.

Answer 2

The preponderance of the cerebral cortex (which, with its supporting structures, makes up approximately 80 percent of the brain's total volume) .

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