Cnidaria

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Cnidaria

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

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