Vertebrates

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They are those that have an articulated skeleton made up of bones. Furthermore, unlike other animals, the skeleton is internal.

Fish

characteristics

Body covered with scales and various fins

Mammals

characteristics

They have hair, viviparous and drink milk

Reptiles

characteristics

It is covered in scales, they are cold-blooded, they reproduce by eggs.

Birds

characteristics

It has feathers, they are born from eggs

Amphibians

characteristics

They are born in water and breathe through gills, while adults live on land.