Phylum: Arthropoda ( Insects, Crustaceans, Spiders, Scorpions, Millipedes)

• 3 layer body plant with bilateral symmetry.
  
  
• Hard exoskeleton composed of chitin.
  
  
• Jointed body segments.
  
  
• Jointed appendages.
  
  
• Some flying organisms in the class Insecta. ( 106+ species)
  
  
• Separate mouth and anus.
  
  

---