Animal Phylum of the world
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Porifera
Cnidaria
Platyhelminthes
Rotifera
Nematoda
Mollusca
Annelida
Arthropoda
Echinodermata
Chordata
Amphibians
Mammals
Birds
Reptiles
Hair is used to insulate against cold and keeping heat in
Mammary Glands-Makes milk for their offspring
Mammals have a 4 chambered heart
Brain size usually increases with body size with some exceptions
Home
About
Porifera
Cnidaria
Platyhelminthes
Rotifera
Nematoda
Mollusca
Annelida
Arthropoda
Echinodermata
Chordata
Amphibians
Mammals
Birds
Reptiles