Facts:
1. Amphibians have porous skin.
2. Frogs are tadpoles when they are babies.
3. Some amphibians have evolved to have no lungs, and get the oxygen they need through their skin.
4. Most frogs have teeth on their upper jaw and none on their lower jaw.
5. Amphibians are animals that live part of their lives in the water and part of their lives on land.
Without water, amphibians bodies would dry out because they need to stay moist with their porous skin. Amphibians are an important consideration when testing water quality because since their bodies are porous the water quality needs to be kept nice and clean or it could be deadly to the amphibians.
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