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Class 11BiologyBreathing and Exchange of GasesHuman Respiratory System
Easy

The sound-producing organ of a bird is:

  • A
    Larynx
  • B
    Syrinx
  • C
    Oropharynx
  • D
    Nasopharynx
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Class 11 Questions

Class 11

Biology Questions

Chapter

Breathing and Exchange of Gases

Subtopic

Human Respiratory System

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