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Animal Div (Characteristics (Shared traits (extensive extracellular matrix…

- - - - shed exoskeletons to grow
    - - extend size of skeleton to grow
  - - - monophyletic
    - - paraphyletic
- - - - bilateral
        
        1 plane of sym
        
        allows fo cephalization, face one direction
      - radial
        
        at least 2 planes of symmetry
      - asymmetric
        
        porifera
    - - coelom lined on both sides with mesoderm
      - acoelomate
      - coelomate
        
        allow for O2, nutrient circulation
        
        hydrostatic skeleton
        
        movem event w/o fins/limbs
      - pseudocoelomate
    - - Diploblast
        
        ectoderm
        
        endoderm
      - Triploblast
        
        ectoderm
        
        mesoderm
        
        endoderm
    - - Bilatera
        
        Protostomes #
        
        mouth form first
        
        arthropods, mollusks, segmented worms
        
        spiral cleavage
        
        Gastrulation: pore become mouth
        
        Coelom: block of mesoderm splits
        
        Deuterostomes
        
        anus form first
        
        echinoderms, chordates
        
        radial cleavage
        
        Gastrulation: pore become anus
        
        Coelom: mesoderm punches off gut to form coelom
    - - mesoderm---muscles
      - ectoderm---body wall
      - endoderm---gut
  - - - termites
      - earthworms
    - - ticks, butterflies
      - babies
    - - shrimp
      - whales
      - flamingoes
    - - sharks
      - humans, bees, wolf
    - - type
        
        carnivore
        
        omnivore
        
        herbivore
        
        detrivores
      - type
        
        parastie
        
        endoparasite
        
        ectoparasite
        
        predators
        
        sit and wait
        
        stalker
  - - - mates
      - escape from predators
      - food
    - - unjointed
      - jointed
    - - genetic homology
      - formed by DLL genes
- - - - use an encasing structure: "Pupa"