Question

metabolism is controlled by which body system?
○ respiratory system
○ digestive system
○ circulatory system
○ endocrine system

Explanation:

The endocrine system consists of glands that secrete hormones. Hormones regulate various metabolic processes in the body, such as the rate of metabolism (e.g., thyroid hormones affect metabolic rate). The respiratory system is for gas exchange, the digestive system for breaking down food, and the circulatory system for transporting substances—none of these primarily control metabolism like the endocrine system.

Answer:

D. Endocrine system