What is the main way in which mammalian species vary in their cerebral cortex? A. The locations of visual and auditory cortex vary among species. B. Some mammals have a cerebral cortex and some do...

What is the main way in which mammalian species vary in their cerebral cortex?
A. The locations of visual and auditory cortex vary among species.
B. Some mammals have a cerebral cortex and some do not.
C. Brains differ in their size and degree of folding.
D. The number of laminae varies from 2 to 12.