Basis of classification (levels of organization, symmetry, coelom, segmentation, notochord)

Classification of Kingdom Animalia

Non-chordates (various invertebrate phyla: Porifera, Cnidaria, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata)

Chordates (including subphyla and classes: Cyclostomata, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, Mammalia)