1. The Five Classes of Vertebrate
By: Crystal Sandoval 5B

2. Fish All fish only live in water
They all get oxygen through their gills
All fish are cold blooded
Most fish have scales
Most of them lay eggs without shells

3. Amphibians All amphibians have moist and soft skins
They are all cold blooded
When they are young they live in water and breathe through gills
When they are adults they usually live on land breathe through their lungs
Amphibians sometimes lay their eggs in water

4. Birds All birds have feathers Birds all live on land
All birds use lungs to breathe
Birds are all warm blooded
All birds have beaks
Birds all lay hard shelled eggs

5. Mammals Mammals all have fur or hair All mammals use lungs to breathe
Mammals are all warm blooded
All mammals feed milk to their young produced by female mammals
Most mammals don’t lay eggs

6. Reptiles Reptiles all have scales All reptiles use lungs to breathe
Reptiles are all cold blooded
Most reptiles live on land
Some reptiles live in water