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Respiratory System — BIOLOGY STD 9 — Question

ICSE BoardEnglish MediumSTD 9BIOLOGYRespiratory System1 Mark
MCQ
Larynx acids as
  • A
    soundbox
  • B
    value of controlling air
  • C
    organ producing sound
  • ✓
    all the above
✓

Answer

Correct option: D.
all the above

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