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प्रश्न
State the three common features of all the respiratory organs like skin, gills and lungs.
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उत्तर
All the respiratory organs like skin, gills and lungs have three common features.
(a) They have a large surface area to get enough oxygen.
(b) They have thin walls for easy diffusion and exchange of respiratory gases.
(c) They have a rich blood supply for transporting respiratory gases.
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संबंधित प्रश्न
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