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origin of life (Eukaryotic Organisms (Animals (Chordates (animals with a…

- - - - starfish
    - - crustacea (2 body parts, 5 or more pairs of legs)
        
        crab
      - Insects (3 body parts, 3 pairs of legs)
        
        grasshopper
      - arachnids (2 body parts, 4 pairs of legs)
        
        spiders
        
        scorpions
        
        ticks
      - myriapoda (2 body parts)
        
        millipedes
      - trilobite (extinct)
    - - Tunicata
        
        sea squirts
      - mammals
      - birds
      - fish
        
        sharks
        
        armored fish (extinct) - early fish with jaws
        
        bony fish
        
        jawless fish
      - reptiles
      - amphibians
        
        frog
    - - jelly fish
    - - segmented worms
      - flatworms
  - - - mosses
      - liverworts
    - - ferns
      - horsetails
    - - woody trees
        
        conifers
      - cycads
      - ginkgoes
  - - - green algae