Please enable JavaScript.

Coggle requires JavaScript to display documents.

final exam (echinodermata (characteristics (Deuterostomatia (radial…

- - - - separate plates
    - - bilateral larva
    - - fluid filled canals
    - - radial cleavage
      - enterocoely
  - - - five parts
      - oral aboral axis
    - - central disc
      - ambulacral grooves
        
        rows of podia
      - itnterambulacrum
    - - epidermis
      - dermis
        
        derived from mesoderm
        
        ossicles
        
        calcite
        
        gives rise to tubercles, granules, spines
  - - - can regenerate lost parts
      - autonomy
        
        voluntary casting off of arms
    - - gonorric, some hermaphrodites
  - - - ampulla contracts to fill podium
  - - - teeth and muscles
  - - - sea stars
      - 5-40 arms
      - semi fused ossicles
    - - brittle stars
      - no ambulacral groove
      - ophiopluteus larva
    - - sea urchins/sand dollars
      - herbivores, filter feerders
      - test as ossicles
      - echinopluteus larva
      - SUBCLASS: cidaroida
        
        slate pencil urchins
      - SUBCLASS: Euechinoida
        
        ORDER: Demadematoida
        
        hollow spined urchins
        
        ORDER: Echinacea
        
        regular urchins
        
        ORDER: Clypeasteroida
        
        sea biscuits, sand dollars
        
        ORDER: Spatangoida
        
        heart urchins
    - - sea cucumber
      - filter feeders
      - fused and unfused calcareous ossicles
      - auriliaria larva
      - 10-30 tentacles
    - - sea Lillies, feather stars
      - calyx stalk or cirri anchor
      - mouth and anus both on oral side
      - vitellaria larva
- - - - arose from coelom
    - - axial rod
  - - - polysaccharides
      - contains hemocytes
    - - pelagic, solitary, reduced pharynx, larval feet, neoteny
    - - Oral and atrial siphons
      - ORDER: Pyrosomida
- - - - SUBCLASS: Merostomata
        
        ORDER: Xiphosura
        
        horseshoe crabs
        
        SUBCLASS: Arachnida
        
        ORDER: Aranae
        
        typical spiders
        
        ORDER: Scorpiones
        
        scorpions
  - - - wingless bugs
    - - bugs with wings
  - - - ORDER: Anostraca
        
        fairy shrimps
    - - ORDER: Decapoda
        
        SUBORDER: Pleocyemata
        
        INFRAORDER: Brachyura
        
        crabs
        
        INFRAORDER: Astacidea
        
        crayfish
        
        lobster