kfnldkl2362 kfnldkl2362
  • 25-03-2018
  • Biology
contestada

The only structures that allow gas diffusion across them are the _____.

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Cutiepatutie
Cutiepatutie Cutiepatutie
  • 25-03-2018
The answer is alveoli, there the only structures.

Hope this helps! Have a BLESSED day! :-)
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