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Mammals
Warm blooded,endothermic
breathe with lungs
most have babies that are born live
have fur or hair
produce milk for their young
Birds
warm blooded
most breathe with lungs
some lay eggs
and have beaks
Fish
Cold blooded ecdothermic
have fins and breath with gills
Reptiles
Cold blooded
breath with lungs
lay eggs
have beaks
two wings
two feet
Amphibians
most breathe in water with gills when young
then breathe with lungs on land when old
metomophisis
lay eggs in belly
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