Phylum Cnidaria- Class Anthozoa- Subclasses Ceriantipatharia and Octocorallia

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Subclass Ceriantipatharia includes what organisms?
Tube anemones (solitary) and thorny corals (colonial)
What is the skeleton of Subclass Ceriantipatharia organisms like?
Horny (hard and organic)
Black coral used for jewlery is made from what subclass?
Ceriantipatharia
Subclass Octocarallia includes what organisms?
Soft, horny and leather corals (sea fans and sea pens)
What kind of symmetry do Octocoralians have?
Octamerous with 8 septa that are unpaired
Describe the GV cavity of Octocoralias
Polyps interconnected via tubes in mesoglea called soleina
Solenia runs thru the mesoglea and skeleton of octocoralia but not hexacoralia
True
Do octocoralias live solitary?
No, in colonies
Give an example of Phylum Ctenophora.
Comb jellies