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STD 11 - 14. Breathing and exchange in gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 14. Breathing and exchange in gases1 Mark
MCQ
Which one of the following has the smallest diameter
  • A
    Right primary bronchus
  • B
    Left primary bronchus
  • C
    Trachea
  • ✓
    Respiratory bronchiole
✓

Answer

Correct option: D.
Respiratory bronchiole
d
It’s obvious.

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