Arthropoda or Arthropods are a Phylum of Kingdom Animalia. They include the largest percentage of known organisms on the planet.

Characteristic FeaturesEdit

  • Have jointed legs
  • Have chitinous exoskeleton which is shed during moulting
  • Undergo metamorphosis
  • May have modified features like compound eyes, spinnerets, poison glands, etc.
  • Open Circulatory System

Further ClassificationEdit

  • Class Insecta
  • Class Arachnida
  • Class Myreapoda
  • Class Crustacea


  • Arthropods can respire through several different ways including lungs, book lungs, trachea and gills depending on their habitat.