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oee [108]
3 years ago
11

In animals, carbon dioxide waste is exchanged for

Biology
1 answer:
LUCKY_DIMON [66]3 years ago
3 0

Answer:

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.

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