Cnidaria
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Cnidaria

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Cnidaria

Cnidaria

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    Cnidaria Cnidaria Presentation Transcript

    • Cnidaria
    • Technicalities
      • Two variations on body plan:
      • Cnidaria?
      • Radial symmetry
      • Diploblastic
        • No true body cavity
        • Embryo has only ectoderm and endoderm
      • Central gastrovascular cavity
      • Cnidae (Nematocysts)
    • Hello, my name is…
      • Sometimes referred to as Coelenterata, phylum Cnidaria consists of aquatic, invertebrate animals. Characteristic of animals within this phylum are radial symmetry, a gastrovascular cavity, and cnidae (capsule-like organelles capable of everting). Cnidaria may be broken up into four classes:
    • Anthozoa coral Sea pen Anemone
    • Hydrozoa
    • Scyphozoa Cubozoa back
    • For the billionth time… Radial symmetry... IN ACTION! back
    • back
    • Nematocyst
    • References
      • “ Cnidaria.” Wikipedia. 2008. Wikimedia Foundation, Inc. 4 February 2008 < http:// en.wikipedia.org/wiki/Cnidaria >.
      • Collins, Allen. “Introduction to Cnidaria.” University of California Museum of Paleontology. 2006. UCMP. 4 February 2008 < http:// www.ucmp.berkeley.edu/cnidaria/cnidaria.html >.
      • Macer, Darryl. “Bioethics Dictionary.” Eubios Ethics Institute. 2008. Eubios Ethics Institute. 4 February 2008 < http:// www.eubios.info/biodict.htm >.
      • “ Sea Pen.” Wikipedia. 2007. Wikimedia Foundation, Inc. 4 February 2008 <http://en.wikipedia.org/wiki/Sea_pen>.
      • Campbell, Neil. “Invertebrates.” Biology. Seventh Edition. Ed. Beth Wilbur. San Francisco: Pearson Education, 2005. 643-645.
    • >