Some amphibians cant actually breathe in water. They simply just need to be cooled off. Have you ever noticed how frogs are slimy?
Although there are a number of creatures that can breathe this is because they have gill that can also process air.
I'm 13 years old so you might want to get someone else's but there's what I know.
All amphibians have a life stage that occurs in water. They do not need to live in water. For example, toads come from eggs laid in water that turn to tadpoles and the tadpoles develop into toads that live almost exclusively on land.
Amphibians are said to have evolved from fish such as the lungfish or lobe finned fish. These fish's ponds may have dried up and the fish had the need to develop a lung and legs to breathe oxygen and walk on land. Amphibians technically do not live on land though because they spend most of their lives near bodies of water.
Reptiles live on dry land; amphibians live on land as well as in water.
Many aquatic animals do.Some amphibians also do.
Many amphibians are born with lateral lines. As they grow older, some amphibians such as salamanders lose their lateral line because it's no longer a necessity due to the fact they also walk on land.
They resorb them and develop lungs.
Fifth
Amphibians grow legs and feet. If you look at tadpoles at about the three week stage, they start to develop their legs and feet while in the water
The question makes no sense.
Amphibians are special animals In that they were the first tetrapods to develop lungs (in adults). Amphibians don't have nares, but instead breathe through their skin. This is do to capullaries placed closely to the outside of the skin, or epidermis.
Some facts about amphibians are that they lay eggs, they are vertebrate meaning it has a back bone. and they develop thank you! =D
No they couldn't, evolution like this never occurred. Reptiles have always been reptiles.
Invertebrate animals are organisms that do not develop a spine. This would be ever organism that are not fish, amphibians, mammals, birds, and reptiles.
All amphibians have a life stage that occurs in water. They do not need to live in water. For example, toads come from eggs laid in water that turn to tadpoles and the tadpoles develop into toads that live almost exclusively on land.
Iguanas are reptiles, and although they are excellent swimmers, they are born on land. So they are not amphibians. Amphibians lay their eggs in the water and the young develop in the water until they get to their adult form. After that they are able to venture out onto land for short periods.
Amphibians are the type of animals that are able to live, breath and survive in both, terrestrial and underwater conditions. When they are babies, they have special breathing organs called 'gilles', when they grow up, they develop lungs, which allow them to live on land.
Tadpoles live in water, as they develop they grow legs and lungs which then allow the to live on land, as adult amphibians.