Biology, 23.07.2021 04:10 nettyshaf202406

Which of the following combinations of phylum and description is correct? (and why?) a) Nematoda − roundworms, internal skeleton
b) Porifera − gastrovascular cavity, coelom
c) Echinodermata - radial symmetry as a larva, coelom
d) Platyhelminthes − flatworms, gastrovascular cavity, no body cavity

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