HashNasharash9274 HashNasharash9274
  • 19-02-2018
  • Biology
contestada

Which vertebrates have air sacs attached to their lungs that make the lungs more efficient?

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danaviss04p4dxef
danaviss04p4dxef danaviss04p4dxef
  • 19-02-2018
I believe this answer to be Frogs
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