Most adult amphibians use a combination of lungs and gas exchange through the skin to breathe. In order for gas exchange to occur through the skin, the amphibian's skin must be moist. Some amphibians use gills or a special lining of the mouth to obtain oxygen.
Frogs obtain oxygen three different ways:
1) from their lungs
2) through the lining of their mouth cavity
3) through their skin
*Google frog respiration for more info*
Frogs have very special skin, they drink and breathe through it. Instead they absorb most of the moisture they need through their skin. frogs get oxygen through their skin when it's moist, they need to take care of their skin or they might suffocate. you'll find frogs that are slimy. This is because the frog skin secretes a mucus that helps keep it moist. Even with the slimy skin, these frogs need to stay near water. Toads on the other hand have tougher skin that doesn't dry out as fast, so they can live farther from water than most frogs.
Most adult amphibians obtain oxygen via their lungs. Only juveniles need to use gills.
The skin on amphibians is very thin, and it allows water to go through it. The water carries oxygen with it, and into the amphibian's body.
Breathing with their lungs and absorbing some oxygen with their moist skin.
Larvae get it with gills, Adults get it with lungs, and most amphibians can get minimal amounts with their moist skin.by breathing
The moist, thin skin of most amphibians allow cutaneous breathing: breathing through the skin. This enables amphibians to get more oxygen from the air. It also enables them to obtain some water as they swim.
Lungs, just like us. However, some amphibians do not have lungs, and all amphibians breathe through their skin (as the only method or on the side if they have lungs). Axolotls and the like, that stay in water for their entire life, breathe through gills behind the head, and their skin (but that really doesn't count as you asked for adults and the axolotl is an eternal larva :P).
Most amphibians grow out of their gills before adulthood.
Tadpoles, or baby amphibians, get their oxygen from the water via gills. Once they mature, they have lungs, and get most of their oxygen from the air. However, they have to remain moist because they still absorb oxygen through the skin, too.
Babys are called larva and have gills, most adults do not have gills.
Amphibians are superficially similar to reptiles, but reptiles are amniotes, that is they lay eggs that are adapted to dry land. Most amphibians lay eggs in water and have a juvenile stage that changes into the adult form.
Most frogs live in water, while most toads live on land.
Amphibians
Frogs,toads,salamanders,leech
No. Urea is generally excreted by MOST adult amphibians.