Biology 0610 · IGCSE · Gas exchange in humans

Gas exchange in humans — practice question

Which row identifies a change that happens during ventilation?

  • Aexpiration; thorax pressure decreases; thorax volume increases; air movement in
  • Bexpiration; thorax pressure increases; thorax volume decreases; air movement out
  • Cinspiration; thorax pressure decreases; thorax volume increases; air movement out
  • Dinspiration; thorax pressure increases; thorax volume decreases; air movement in

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