(Animals that molt)
Phylum NEMATODA (roundworms):
Phylum ARTHROPODA
(animals with jointed legs):
Subphylum or Class Trilobita:
Subphylum or Class Crustacea:
Subphylum Chelicerata:
Anatomy of a spider
Subphylum Uniramia — myriapods
Subphylum Uniramia — Class Insecta:
Grasshopper anatomy
Summary of last several classes:
