A previously unknown animal is being studied so that it can be classified. It is an invertebrate, triploblastic, dorsoventrally flattened, acoelomate, and has flame cells. Which phylum would you place it in?

A. Platyhelminthes.
B. Mollusca.
C. Arthropoda.
D. Cnidaria.


A. Platyhelminthes.

Biology & Microbiology

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