Phylogenetic Tree of Animals:
Which of the following combinations of phylum and description is incorrect?
A) Echinodermata - bilateral symmetry as larva, coelom present
B) Nematoda - roundworms, pseudocoelomate
C) Cnidaria - radial symmetry, polyp and medusa body forms
D) Platyhelminthes - flatworms, gastrovascular cavity, acoelomate
E) Porifera - gastrovascular cavity, coelom present
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What scientific concept do you need to know in order to solve this problem?
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