Amphibians Breathe With Gill

They also have fins to help them swim just like fish.

Amphibians breathe with gill. They live the first part of their lives in the water and the last part on the land. Tadpoles are frog larvae. They can now breathe air on land.

Tadpoles and some aquatic amphibians have gills like fish that they use to breathe. The gills lie behind and to the side of the mouth cavity and consist of fleshy filaments supported by the gill arches and filled with blood vessels which give gills a bright red colour. Not all amphibians can breathe underwater.

Amphibians are cold-blooded which means that their body temperature changes with their surroundings. The lungs of amphibians are simple saclike structures that internally lack the complex spongy appearance of the lungs of birds and mammals. Amphibians have bare skin breathe through gills and have no legs when young.

Frogs like salamanders newts and toads are amphibians. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. While they can breathe air most amphibians arent capable of using their lungs for breathing exclusively.

By the time the amphibian is an adult it usually has lungs not gills. Within a few days of life the external gills of tadpoles are covered by a fold of tissue called the operculum which leaves only one or two small openings to the outside known as spiracles. When they are adults they breathe through lungs and have four legs with interdigital membrane.

Early in life amphibians have gills for breathing. They have gills and tails but no legs. The reptiles lung has a much greater surface area for the exchange of gases than the lungs of amphibians.