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Class 11BiologyBreathing and Exchange of GasesExchange of gases
Easy

What is the main site of the human respiratory system where the exchange of gases occurs?

  • A
    Alveoli
  • B
    Bronchiole
  • C
    Primary and secondary bronchi
  • D
    Trachea
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Class 11 Questions

Class 11

Biology Questions

Chapter

Breathing and Exchange of Gases

Subtopic

Exchange of gases

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