Amphibians
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Amphibians. - Means ”double life”, spends part or all of its life in water - skin is smooth and must remain damp for them to breathe through skin - eggs do not have shells, so they must be laid in water - external fertilization   - caecilians, frogs, toads, salamanders and newts. Reptiles.

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Amphibians
Amphibians

  • - Means ”double life”, spends part or all of its life in water

  • - skin is smooth and must remain damp for them to breathe through skin

  • - eggs do not have shells, so they must be laid in water

  • - external fertilization  

  • - caecilians, frogs, toads, salamanders and newts


Reptiles
Reptiles

  • dry, scaly skin that does not dry out, so can live completely on land, but must shed skin to grow

  • - amniotic eggs have leathery shells so they won't dry out, they can lay eggs on land

  • - internal fertilization

  • ex.snakes, lizards, tortoises, turtles, crocodiles and alligators