Final answer:
True, the autonomic nervous system is composed of the sympathetic and parasympathetic divisions. They work together to maintain homeostasis by having opposite effects on the body's involuntary functions.
Step-by-step explanation:
The autonomic nervous system is indeed composed of two divisions: the sympathetic division and the parasympathetic division. This is true. These two subdivisions play complementary roles in regulating the body's involuntary functions, maintaining homeostasis through their oppositional yet integrated actions. The sympathetic division orchestrates the body's rapid involuntary response to dangerous or stressful situations, a reaction commonly known as the 'fight-or-flight' response. Conversely, the parasympathetic division predominantly oversees body functions during restful periods, also described as 'rest and digest' activities.