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Biology · STRUCTURAL ORGANISATION IN ANIMALS

हिन्दी

In Rana tigrina, which organ(s) execute respiratory exchange during periods of aestivation and hibernation?

  1. A
    Buccal cavity and lungs exclusively.
  2. B
    Skin exclusively by cutaneous gas exchange.
  3. C
    Lungs, supported by external gills.
  4. D
    Buccopharyngeal cavity and cloacal sacs in equal proportions.
View Answer & Solution

Correct answer · Option B

Skin exclusively by cutaneous gas exchange.

Explanation

During aestivation and hibernation, gaseous exchange in frogs takes place exclusively through the moist skin (cutaneous respiration).

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