Final answer:
Humans typically breathe about 15 times per minute, leading to around 21,600 breaths per day.
Step-by-step explanation:
The average human breathes around 15 times per minute during periods of rest, totaling approximately 900 breaths per hour and 21,600 breaths per day. This essential physiological process involves inhaling oxygen, crucial for cellular function, and exhaling carbon dioxide, a byproduct of cellular respiration. Oxygen is transported to organs and tissues via the bloodstream, sustaining metabolic processes vital for life. The intricate coordination of the respiratory system ensures a continuous exchange of gases, facilitating the energy production required for the body's functions. This dynamic process highlights the remarkable efficiency of the respiratory system in maintaining homeostasis and supporting overall health.