the respiratory suraface is 1 cell thick or 2 cell thick??
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The respiratory surface is 1 cell thick to increase to make the exchange surface very thin. This shortens the diffusion distance across which gases have to move.
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The respiratory surface is 1 cell thick to increase to make the exchange surface very thin. This shortens the diffusion distance across which gases have to move.
#RehanAhmadXLX
#BrainlyStar
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