Final answer:
The brain's complexity is evidenced by the connections of many simple pieces in the brain. The cerebral cortex, the outer surface of the brain, is responsible for higher level processes such as consciousness, thought, emotion, reasoning, language, and memory.
Step-by-step explanation:
The connections of many simple pieces in the brain is evidence of the brain's complexity. The brain is a remarkably complex organ comprised of billions of interconnected neurons and glia. This complexity allows for the various higher neurological functions such as memory, emotion, and consciousness. The cerebral cortex, which is the outer surface of the brain, is associated with higher level processes such as consciousness, thought, emotion, reasoning, language, and memory.