platyhelminthes

• Diploblastic


  2 tissue layer
• Triploblastic


  3 tissue layer
• Ectoderm Mesodem Endoderm


  What are the thee tiessue layers?
• Body cavity


  Fluid or air filled space between digestive tract and outer body wall

  Gives protection
• Aceolomate


  term for lack of body cavity

  2

  
• Planaria, flatworm


  Which two organisms have an Aceolomate body cavity?
• Pseudoceolomate


  false body cavity

  
• ceolomates


  Body cavity lined with mesoderm tissue

  
• Ceolomates


  What type of body cavity are protosomes and deuterostomes
• Protostome


  Mouth forms first
• Protostome


  Coelom forms from split in mesoderm
• Blastopore


  What becomes the mouth in a protostome
• Auricle


  1

  
• eye spot


  2

  
• Pharynx


  3

  
• Planaria


  Class Turbellaria

  
• Clonorchis


  Class trematoda

  
• Oral sucker


  1

  t are used to attach to and feed off of their host.

  
• Pharynx


  2

  
• uterus


  3

  
• Ovaries


  4

  
• testes


  5

  
• Seminal receptacle


  6

  
• Schistosoma


  Class Trematoda

  
• Taenia


  Class Cestoda

  
• Scolex


  taenia

  
• clade polyplacophora (chitons)


  Shell with 8 dorsal plates

  
• Phylum Mollusca


  Clade polyplacophora is in what Phylum?
• gravid proglattid

  
• Beef tapeworm (Taenia saginata)

  grow continuosly

  
• Trematoda


  What class is schistosome a part of
• Detects chemical changes


  Function of auricle