PHYLUM Arthropoda

from the Greek terms for joint and foot. More than 80% of the exisiting species on earth are arthropods. Arthropods are covered by a hard exoskeleton, providing physical protection. Arthropods grow in size by undergoing to periodic moults, exiting the old exoskeleton to form a new one.
  
  
  - Kingdom ANIMALIA
  - Subkingdom EUMETAZOA
  - Phylum   ARTHROPODA

SUBPYHLUM Hexapoda

SUBPYHLUM Crustacea