What does the cerebral cortex do?
I would definitely say B, contains more than half the cells in the brain. The cerebral cortex is the upper portion of the brain and if you look at a picture it does look like it takes up about half of the brain. It’s not A, is the primary part of the brain that regulates breathing and heart rate because that’s more a job of the medulla, which is part of the hind brain. It’s not C because all of the neurons in the brain release neurotransmitters, no matter where they are in the brain.