Answers

  • Brainly User
2014-06-27T17:48:17+05:30
Unlike mammals who absorb oxygen through the alveolar in their lungs, frogs are able to use their skin as a surface for gas exchange. The capillaries carry oxygen poor blood underneath the skin so that the oxygen in the air or water will be transported into the blood.
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2014-06-27T21:42:21+05:30

Frogs use their lungs while on ground and gills when in water! SIMPLE!
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