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प्रश्न
Answer the following question.
Fish and frog can respire in water. Can they respire through their skin? If yes, why do they have gills?
टीपा लिहा
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उत्तर
- Yes, fishes and frogs can respire through their skin.
- The larval stage of frog i. e. tadpole respires through gills. During metamorphosis, tadpoles lose their gills and develop lungs.
- Frogs do not have scales and breathe through their skin underwater.
- Fishes respire primarily via gills. The body of fishes is covered with scales which limits cutaneous respiration in them.
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