I've been researching this for awhile and I can't figure it out. I hope you guys can help!! Thanks
What are the methods of internal transport for porifera, Coelenterata(Cnidaria), Platyhelminthese and Nematod?
Internal transport? I'm pretty sure you mean digestion, in which case they just have a gastrovascular cavity since they have no coelom development. (Nematodes do have a pseudocoelom, but it's still not a real coelom.)
I hope that answers your question...
Reply:i think my internal transport, he means circulatory system. Report Abuse
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