According to Abraham Maslow's hierarchy, which needs must be met first?

The human brain has __________ neurons

A) 100 to 200 million B) 500 to 600 million C) 100 to 200 billion D) 500 to 600 billion

The brain is connected to the rest of the body via the

a. corpus callosum. b. spinal cord. c. limbic system. d. cranial nerve.