1500_15_Hemi+UroChordates

Ryanphotographiccomimagesjpegsphallusia20julinea20aust

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Unformatted text preview: PEGS/Phallusia%20julinea%20Australia.jpg TUNICATE diversity: Ascidiacea TUNICATE TUNICATE diversity: Ascidiacea TUNICATE diversity: Ascidiacea http://www.ryanphotographic.com/ascidians.htm TUNICATE diversity: Ascidiacea TUNICATE diversity: Ascidiacea Megalodicopia hians: only free living carnivorous sea squirt. TUNICATE diversity: Thaliacea 1) Free floating through out entire life span 2) Filter feeders 3) Movement by jet expulson of water from siphon TUNICATE diversity: Appendicularia or Appendicularia Larvacea 1) 2) Solitary Free swimming throughout life cycle 3 ) Morphology resembles ascidian tadpole larva with trunk and tail 4 ) Notochord 5) Dorsal nerve chord UROCHORDATES (Tunicata): adult body plan traits 1) Lack of segmentation 2) Coelom reduced to pericardial cavity and gonads 3) Most organs enclosed by epicardium which is surrounded by mesenchyme Ascidians: basic body plan traits of adult stage 1. Integument: The 1. internal anatomy of ascidians is surrounded by a body wall made up of fibers and a carbohydrate known as tunicin. This body wall is called a tunic and h...
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This note was uploaded on 08/03/2010 for the course BIO 1500 taught by Professor Pandolfi during the Winter '08 term at Wayne State University.

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