Which one of these performers relies most heavily on their cardiovascular endurance?
1 answer:
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oxygen
Explanation:
- Through the process of respiration , in lung the carbon dioxide from the blood is exchanged with oxygen.
- The smallest dunctional unit if the lung is the alveoli
- At this level the gases are exchange through the capillaries present close to the alveoli.
- The concentration gradient ,meaning the greater amount of oxygen present in the lungs and greater amount of carbon dioxide in the blood creates a gradient that allow the movment of oxygen into the blood and carbon dioxide in the alveoli through the membrane .
- Partial pressure created allows the easy movement .The carbon dioxide get into the trachea and expelled through nose and mouth.
