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Some common examples are frogs toads salamanders and newts.
Amphibians breathe through on land. Although they are not born with these organs they develop them during the metamorphosis they undergo during maturation. Most amphibians reproduce in fresh water while a few lay their eggs on land and have developed mechanisms to keep the eggs moist. This is important for two reasons.
They are animals of external or internal fertilization and oviparous. While adult amphibians spend part of their time on land they still need to. Amphibians breathe through in water.
They lay eggs in water not on land and their eggs are soft with no hard shell. The larvae mature while in the water. Egg Are Fertilized Outside of the Body.
They have young that breathe through gills in water. Most amphibians have thin skin that is very permeable allowing liquids and gases to pass through it easily. Some amphibians can hold their breath for hours.
It can survive without any water for quite a while. First it means that their skin helps them breathe since oxygen passes easily through it. Some transport water oxygen and carbon dioxide either into.
One of the few exceptions is the American spadefoot toad. Amphibians have an important characteristic that they can live in both water or on land. They have smooth skin no scales and moist bodies.
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