Final answer:
The nervous system is the most complex and highly organized body system, controlling and coordinating all body functions.
Explanation:
The most complex and highly organized body system is the Nervous system. This system controls and coordinates all body functions through the brain, spinal cord, and nerves. It plays a crucial role in receiving sensory input, interpreting it, and producing responses.
Learn more about Human Body Systems here:
https://brainly.com/question/14422939
