Why do lungs always have residial volume of air
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The lungs always contain a residual volume of air so that during breathing cycle there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released.
Hope it helps!!
Hope it helps!!
Answered by
1
the lungs always contain a residual volume of air so the during breathing cycle there is sufficient time for oxygen to be absorbed and and for the carbondioxide to be released. hemoglobin is the respiratory pigment in humans. it's present in red blood cells.
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