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Mollusca
Porifera
Cnidaria
Platyhelminthes
Nematoda
Anneida
Arthropoda
Echinodermata
Chordata
Review Questions
Review Answers
1. mollusca
2. porifera LITERALLY means pore bearing and it is RELEVANT because they are all sponges, covered with pores.
3. cnidaria
4. platyhelminthse
5. The stomodeum, the intestine and the Proctodeum