Question

the ____ is the complex organ that enables people to complete many actions and processes. a. heart b. brain c. spinal cord d. nervous system please select the best answer from the choices provided

Explanation:

The brain is a complex organ that controls various actions and processes in the body. The heart mainly pumps blood, the spinal cord is part of the nervous - system and transmits signals, and the nervous system is a system not a single organ.

Answer:

B. brain