What unique structural adaptations are found in the mammalian brain that allowed mammals to become adept at higher mental activities?
A. A more direct connection to the spinal cord for faster conduction of neural impulses.
B. An increased number of blood vessels that increases the vascularization of the brain.
C. A higher degree of crevasses and folds in the neocortex that increases the surface area of the brain.
D. An enlarged pons.
E. A cranium that will protect the brain from damage.
Answer: C
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