Final answer:
The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system, working together to maintain homeostasis.
Step-by-step explanation:
The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system, which controls our internal organs and glands. The sympathetic system is associated with the fight-or-flight response, while the parasympathetic system is responsible for the rest and digest response. The two systems work together to maintain homeostasis in the body.