Which of the following combinations of phylum and description is correct?
(A) Echinodermata—radial symmetry as a larva, coelom
(B) Nematoda—roundworms, internal skeleton
(C) Platyhelminthes—flatworms, gastrovascular cavity, no body cavity
(D) Porifera—gastrovascular cavity, coelom
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Master Overview of Animals - 1 with a bite sized video explanation from Jason Amores Sumpter