Statement I: Among vertebrates, reptiles, birds and mammals respire through lungs.
Statement II: Amphibians like frogs exhibit only cutaneous respiration.

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Statement I is correct but statement II is incorrect.

Statement I is incorrect but statement II is correct.

Both statement I and statement II are correct.

Both statement I and statement II are incorrect.

answer is A.

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Detailed Solution

Among vertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through lungs. Amphibians like frogs can respire through their moist skin (cutaneous respiration) also.

The tadpole of frog respires through gills. The adult frog can respire through moist skin, lungs and buccopharyngeal cavity.

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