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| | Laboratory 1 – Parazoa, Radiata, Acoelomate and Pseudocoelomate Phyla |
 | | Complete the exercise at the end of the lab, and submit by e-mail or in writing. |
 | | This lab focuses on the more primitive invertebrate phyla including the Parazoan Porifera (sponges) with an aggregate body plan, the Radiata phyla Placozoa, Cnidaria and Ctenophora with radially symmetrical blind-sac body plans, and the Bilateria phyla of unknown relationship Mesozoa, Platyhelminthes (Flatworms), Gnathostomulida, Gastrotricha, Rotifera, Micrognathozoa, Ciliophora, and Chaetognatha. |
 | | Mesozoa – Are small worm-like animals that live as parasites of other marine invertebrates. |
| userwww.sfsu.edu /~efc/classes/biol170/lab/Laboratory-1.htm (1650 words) |
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