Bio exam 3

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Anonymous
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53511
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Bio exam 3
Updated:
2010-12-05 16:09:47
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bio
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  1. Body plans of jelly fist and sea anemones
    Biradial & Radial Symmetry; acoelomate
  2. Jelly Fish and Sea Anemones Tissue Layers
    extoderm & endoderm
  3. Who was the first group to have nerve systems
    Cniderns (Jellyfish and Sea anemones)
  4. Cniderns reproduction
    budding
  5. how to jellyfish capture food
    nematocysts
  6. What supports a jellyfish
    Hydrostatic Skeleton
  7. Polymorphism is
    Polyp and medusa - two types of shapes in Cnidrens
  8. Where does digestion occur in jellyfish
    extracellular in gastorvascular cavity
  9. what reproduces sexually, producing egg &
    sperm gametes.
    hermaphroditic medusa
  10. Nerve Cells have many....
    deadrites
  11. mesoderm first appears in
    flatworms
  12. what do flatworms use for osmoregulation
    nephridia
  13. What holds things in place in a body cavity
    mesentary
  14. Advantages of an internal enviorment
    Cells can differentiate, and become more specialized, and animals can live in more diverse habitats
  15. disadvantages of internal enviorments
    more complexity needed, more communication and intergration needed between all cells and systems
  16. evolution of sensory organs developed at which end of a flatworm?
    anterior
  17. locomotion in flatworms is accomplished by
    messodermal tissue which differentiates into muscules
  18. heterotrophs cant synthesize from
    inorganic compounds and eat food w carbon skeletons
  19. heterotrophs digestion is dominateed by
    intracellular digestion

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