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Respiration in Organisms — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceRespiration in Organisms1 Mark
MCQ
During exhalation, the ribs
  • A
    move outwards
  • B
    move downwards
  • C
    move upwards
  • ✓
    do not move at all
✓

Answer

Correct option: D.
do not move at all
(d) (ii) Move downwards During exhalation the ribs moves downwards causing a decrease in area of chest cavity forcing the air out.

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