How does frog adopt for both aquatic and terristial life
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Frogs start their lives as aquatic tadpoles with gills to breathe. As tadpoles grow into frogs, lungs replace the gills and allow frogs to breathe on land. Frogs' skin is covered by a layer of slime that dissolves oxygen from air and water. Numerous blood vessels present in frogs' thin skin absorb the oxygen.
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