Classes: Jelly fish, Hydrozoans, and Corals &amp; Sea Anemone Brain Coral Hydra polyp Phylum Porifera: sponges, the most primitive animals.
(Coral Hydra polyp Phylum Porifera; [is] Brain [of]; Sea Anemone)
Coral Hydra polyp Phylum Porifera
[is] Brain [of]
Sea Anemone