Uhh because they can kill you lol
Answer:
The respiratory system provides oxygen to the body's cells while removing carbon dioxide, a waste product that can be lethal if allowed to accumulate. There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration.
Explanation:
<span>A rapid rate of change, a limit of some sort, and delays in perceiving the limit.</span>