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Biol 221: Zoolog a Cap tulo 20: Anfibios Por: Marcia Crespo, M.A.

I INTRODUCCIN . CARACTERSTICAS GENERALES:Incluyen las salamandras, ranas, sapos y ceciliasParte de su desarrollo embrionario es en el aguaRespiran por pulmonesEsqueleto seo, carencia de exoesqueletoDos pares de extremidades (tetrpodos). . Piel lisa y hmeda con muchos glndulas v

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Biol 221: Zoolog a Cap tulo 20: Anfibios Por: Marcia Crespo, M.A.

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