Translations:Adventist Youth Honors Answer Book/Nature/Worms/13/en
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7. Which phyla, mentioned in question 5, are free living or parasitic?
Annelida include earthworms, which are free-living, and leeches, which are parasites. Most Nematodes (roundworms) are parasites, and most Platyhelminthes (flatworms) are free-living.
