They have gills, wich are extremely blood-rich organs. Gills collect oxygen from the water so the animal can breathe.
the young live only in water, look different from their parents, breathe though gills
Yes
Young amphibians mainly use their skin and gills to breathe. Their skin is thin and moist, allowing oxygen to pass through directly into their bloodstream. Gills are present in aquatic species and help them extract oxygen from water. As they mature, they develop lungs for breathing air.
amphibians have their young ones in water
amphibians are cold blooded
Young frogs, or tadpoles, breathe underwater using gills. Then they grow lungs and lose their gills. As adults, they breathe air using their lungs.
all amphibians are borm with a shell or in an egg or in water.
Most amphibians live in or around water, although toads do not have to.
No. It is a reptile. To qualify an animal as an amphibian, some part of their life cycle must be dependent upon water. Frog larva hatch and swim in water for a period of time, thus they are amphibians. Water monitors lay eggs on land and the babies hatch on land. They are always terrestrial therefore they are reptiles. When young, amphibians breathe via gills (and a spiracle in some species) as they are water-dwellers. They breathe through lungs when they are mature, as they are now capable of leaving the water for extended periods of time (axolots notwithstanding).
No. Kangaroos are Mammals; specifically, they are marsupials. Unlike amphibians, they do not undergo metamorphosis; they do not have moist skin; they do not breathe through gills when they are young; and they do not lay eggs (Although not all amphibians lay eggs).
Amphibians require water to reproduce as their eggs do not have a water proof shell. that requires that the developing young be in water. Also, amphibians go through a process of metamorphosis Reptiles, most of them, lay eggs that are more waterproof and do not dry out. The young of reptiles are born as miniatures of the adults and do not require water sources to mature.
They don't! Most amphibians are generally independent from the moment they are born. However some, such as the worm, feed their young their own flesh. Amphibians do not feed their young. They lay the eggs in water and leave them to fend for themselves. They are also quite likely to eat their own young. That is why they have so many eggs.