Categories > diversity-of-life > Animalia Phylum-Platyhelminthes > Which one of the following groups belongs to one category

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Question: Which one of the following groups belongs to one category


1) Polychaeta, hirudinea, oligochaeta and onychophora
2) Holothuroidea, ophiuroidea, asteroidea, echinoidea and hirudinea
3) Turbellaria, trematoda and cestoda
4) Cephalopoda, gastropoda, thysanura and lamelibranchiata
Solution: Explanation: No Explanation
Animalia Phylum-Platyhelminthes

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