Question

the process of breathing occurs through which body system?
○ integumentary system
○ circulatory system
○ respiratory system
○ digestive system

Explanation:

The integumentary system is about skin, hair, etc. The circulatory system deals with blood flow. The digestive system is for digestion. The respiratory system is responsible for breathing (gas exchange, inhalation/exhalation). So the correct option is the Respiratory system.

Answer:

C. Respiratory system