Amphibians Breathe Through In Water
When amphibians are born they will start their life in the water.
Amphibians breathe through in water. As amphibian larvae develop the gills and in frogs the tail fin degenerate paired lungs develop and the metamorphosing larvae begin making excursions to the water surface to take air breaths. Tadpoles breathe in water and force it past their external gills in the beginning so that tiny blood vessels in their gills can absorb the oxygen in water and put it directly into the blood stream. Some amphibians can hold their breath for hours.
These specialised structures are present in organisms according to the environment the live in and that help the organisms to breathe. A few amphibians dont bother with lungs and instead absorb oxygen through their skin. With some amphibians it appears that they can breathe underwater when in fact they are holding their breath.
Most amphibians breathe through lungs and their skin. Respiration of the larvae. Similarly amphibians have special structures to breathe when they are on land and also when they are in water.
They also have fins to help them swim just like fish. This is important for two reasons. As you may already know most amphibians go through a larval stage in the water with exceptions.
Second it means that amphibians lose a lot of water through their skin. Cutaneous respiration allows the animal to absorb water through their skin directly into their bloodstream. By the time the amphibian is an adult it usually has lungs not gills.
At a later stage of life amphibians develop lungs and legs and move out of the water to live on land. Amphibians larvae mature in water and breathe through gills. Amphibians breathe through in water.