Cnidaria
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Cnidaria

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Cnidaria Cnidaria Presentation Transcript

  • By: Josh Browning and T.C. Homan Cnidaria Scientific name: Heteractis Malu
  • Classification
    • Classified into four main groups
    • Hydrozoa ( Sea anemones, corals, and jellyfish)
    • Scyphozoa ( cup animals and jelly fish)
    • Cubozoa (box jellyfish)
    • Anthozoa ( sea pens, sea fans, blue coral, and black coral sea anemones)
  • Body Form
        • Symmetry is radial
    • Body forms are polyp and medusa
    • Skeletal system is mesoglea (endoskeleton) calcium carbonate (exoskeleton)
  • Reproduction Methods
    • Polyps (Produce by asexual budding)
    • Sexual reproduction (hermaphroditic)
  • Digestive System
    • Gastrovascular Cavity ( nutritive muscle)
    • All carnivorous
  • Circulatory System
    • (Heart and Blood Vessels)
  • Respiratory System
    • They do not need a respiratory system
  • Environment
    • Lives in Aquatic environments
    • Mostly Marine
  • Interactions
    • Have stung people
    • They only sting if they disturb them
    • Over the past six years in Queensland only 1100 cases of jellyfish stings.
  • Unique Features
    • The mouth is surrounded by tentacles studded with microscopic stinging capsules known as nematocysts that are the agents of offense and defense.
    • Cnidarians are diploblastic -- that is, the body and tentacles consist of two cell layers
    • Come in a ton of different shapes and sizes
  •  
  • Thank You
    • Thank you for watching this power point on cnidaria
    • Thank you to Mrs. Tabor the awesomest Science teacher in the world
    • Go seventh period!!!!!
  • Internet Sites
    • http://animaldiversity.ummz.umich.edu/site/accounts/information/Scyphozoa.html
    • http://jellieszone.com/cubozoa.htm
    • http://science.jrank.org/pages/3477/Hydrozoa.html
    • http://tolweb.org/Anthozoa
    • http://www.kn.sbc.com/wired/fil/pages/listjellyfisli.html
    • http://animals.about.com/od/cnidarians/ss/cnidarians.htm