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   nofret Teacher
   High School - 11th Grade

   eNotes Editor

   There are many examples of invertebrate animals that are multicellular.  In fact, 95% of all animals are invertebrates.  There are 12 main phyla of invertebrate animals.  According to Wikipedia they are:

   • Arthropoda — insects, arachnids, crustaceans
   • Nematoda — round worms
   • Mollusca — squid, snails, bivalves
   • Annelida — segmented worms (earthworms, leeches, polychaetes)
   • Nemertea — ribbon worms
   • Platyhelminthes — flat worms
   • Rotifera
   • Acoelomorpha
   • Ctenophora — Comb jellies
   • Cnidaria — jellyfishes, corals, sea anemones, hydras
   • Porifera — sponges
   • Echinoderms - starfishes, sea urchin

    

   Hope this helps!

   Sources:

   http://en.wikipedia.org/wiki/Invertebrates

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   Posted by nofret on Friday October 9, 2009 at 5:45 AM