| 21. | Molecular evidence suggests that this phylum are derived from the " Lophotrochozoa.
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| 22. | Flatworms ( phylum Platyhelminthes ) are the most primitive animals with bilateral symmetry.
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| 23. | Their main form of survival is Trans New Guinea phylum of Papuan languages.
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| 24. | Members of this phylum were categorized in other phyla.
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| 25. | Silicarea is considered the next phylum to diverge from the primary animal lineage.
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| 26. | It is classified within the extinct animal phylum Proarticulata.
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| 27. | Acoela used to be classified in the phylum Platyhelminthes.
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| 28. | Physarum polycephalum belongs to phylum Amoebozoa, infraphylum Mycetozoa, and class Myxogastrea.
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| 29. | The Platyzoa include the phylum Platyhelminthes, the flatworms.
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| 30. | The relative number of species contributed to the total by each phylum of animals
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