The kit consists of 48 cards, each with the picture of an animal and a brief description of the animal. Three animals each are depicted from
Porifera
Coelentrates
Platyhelminthes
Nematodes
Annelids
Arthropods: Hexapods
Arthropods: Crustacea
Arthropods: Chellicerata
Arthropods: Myriapodes
Mollusca
Echinodermata
Chordata: Fish
Chordata: Amphibians
Chordata: Reptiles
Chordata: Birds
Chordata: Mammals
Students use common properties to classify the organisms. All vertebrates and all invertebrates share a common property, all organisms in the same phylum share two properties and all organisms in the same class share three properties.