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My powerpoint of Tunicates for Mrs. Tabor's science project!

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  1. 1. Chordata Urochordata By Sam Cleary Period 2 5/19/09-5/20/09 Bluebell Tunicate Clavelina puertosecensis
  2. 2. Classification <ul><li>Class Appendicularia-Floats freely   </li></ul><ul><li>Class Ascidiacea-Attached Ascidiacea </li></ul><ul><li>Class Thiliacea </li></ul>
  3. 3. Parts Of Urochordata <ul><li>pharyngeal slits and arches </li></ul><ul><li>dorsal hollow nerve cord </li></ul><ul><li>notochord </li></ul><ul><li>post-anal muscular (unsegmented) tail. </li></ul><ul><li>sessile filter feeders with an expanded pharynx </li></ul><ul><li>larval lampreys </li></ul>
  4. 4. Reproduction <ul><li>Most Urochordates are hermaphrodites, meaning the have both sperm and egg. </li></ul><ul><li>Some can reproduce asexually by budding </li></ul>
  5. 5. Feeding and Digestion <ul><li>Suspension feeders </li></ul><ul><li>They use Mucus nets to trap plankton. The mucus catches food particles and is digested by the Dorsal Lamina and moved to the stomach. </li></ul>
  6. 6. Circulatory System <ul><li>Consists of a ventral heart </li></ul><ul><li>Open circulatory system, so blood flows all around the entire body (no veins) </li></ul>
  7. 7. Respiratory System Through respiratory Tube Out Gills Water Flows in Mouth
  8. 8. Living environment <ul><li>Lives in an aquatic or marine environment . </li></ul>
  9. 9. Interactions with Us <ul><li>Very good in research value </li></ul><ul><li>Some demand for food items or as pets in aquariums </li></ul>
  10. 10. Unique Features <ul><li>Has a “U” Shaped gut </li></ul><ul><li>Filter Feeders </li></ul><ul><li>More than two cell layers, tissues, and organs </li></ul><ul><li>Body covered in secreted protein </li></ul>
  11. 11. Other Information <ul><li>Also called Tunicates </li></ul><ul><li>Commonly known as “Sea Squirts” </li></ul><ul><li>Referred to evolutionarily important group of animals </li></ul><ul><li>Nearly 2000 species discovered </li></ul>
  12. 13. Information Bibliography <ul><li>Urochordata. May 19 2009. http://courses.washington.edu/emb2002/animals/urochordata.pdf </li></ul><ul><li>Phylum Chordata . May 19 2009. http ://www.biol.wwu.edu/donovan/biol46 </li></ul><ul><li>M. E. Haffey. Hemichordates and Chordates. May 20 2009. http://faculty.vassar.edu/mehaffey/academic/animalstructure/outlines/chordata.html </li></ul><ul><li>S. Raylman. Phylum Chordata. May 20 2009. </li></ul><ul><li>http://www.as.wvu.edu/~sraylman/comparative/lectures/2uro,ceph,craniata.pdf </li></ul><ul><li>Lewbart, Gregory. Invertabrates Medicines. Blackwell Publishing, 2006. </li></ul><ul><li>Ramel, Gordon. The Sea Squirts. May 21 2009. </li></ul><ul><li>http://earthlife.net/inverts/urochordata.html </li></ul>
  13. 14. Image Bibliography <ul><li>http://www.aboututila.com/Reviews/Charlie-Johnson/Photos/Bluebell-Tunicates.jpg </li></ul><ul><li>http://tolweb.org/Chordata/2499 </li></ul><ul><li>http://www.usm.maine.edu/bio/courses/bio205/Urochordate%20tree.jpg </li></ul>