Question

Which describes the primary function of the nervous system in keeping the body in homeostasis?

It processes the environment and sends out signals.
It controls movement and provides structure.
It physically breaks down and absorbs food.
It puts oxygen in the blood, which is essential for life.

Answer 1

It processes the environment and sends out signals.

The nervous system senses internal and external changes, integrates that information, and sends signals to organs and tissues to coordinate responses (e.g., adjust heart rate, breathing, temperature, and hormone release) to maintain homeostasis.