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When the adult frog leaves the pond what change has to take place? A. A change from gill-like structures for breathing in water to lungs for breathing on land. B. A change from lungs for breathing in water to gills for breathing on land. C. A change from gills for breathing in water to pores on the skin for breathing on land.

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HandyMan133
 A change from gill-like structures for breathing in water to lungs for breathing on land. 

Answer: Option A

Explanation:

Frogs have 3 respiratory system, one by which they survive in water and other from the nostrils to lungs on the land.

The frogs respire using gills in water when they are in the form of tadpoles and then they move from water to land.

They move on land in order to develop lungs. Lungs helps the adult frog to respire on the land.

Hence, the correct answer is option A.

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