Question

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Answer 1

Answer:

Frogs can live both on land and in freshwater and belong to class Amphibia of phylum Chordata. Frogs respire on land and in the water by two different methods. In water, skin acts as a respiratory organ(i.e cutaneous respiration) by diffusion. On land, lungs act as the respiratory organ. (i.epulmonary respiration). The lungs are a pair of elongated, pink coloured sac-like structures present in the upper part of the trunk region (thorax). Air enters through the nostrils into the buccal cavity and then to the lungs. Hence, the frog (on land) breathes through the lungs.

So, the correct answer is 'lungs'.

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Explanation:

ok......

Answer 2

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