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Invertebrate Chordates

Marine organisms that have a semi-rigid structure between their dorsal nerve cord and gut.

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Pelagic Tunicates

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  1. What are the common traits between pelagic and sessile tunicates?
  2. How do sessile and pelagic tunicates differ?
  3. Evolutionarily which do you think came first sessile or pelagic tunicates? Explain your answer and give specific reasons for your belief.

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