List the main differences between a tadpole and an adult amphibian.

Consider the example of frogs, since these are the most common amphibians (amphibians). They live in various places on our planet where there is a suitable climate and fresh water reservoir. Frog tadpoles live in the aquatic environment until they are completely transformed. They have a tail and are different from an adult frog. Also, a distinctive feature of tadpoles is the presence of gills. They live in water, respectively, they breathe with the help of gills. Transformed frogs have no gills. They breathe through the lungs and the surface of the skin.