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flatworm summary

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Know about the habitats and types of flatworms

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Below is the article summary. For the full article, see flatworm.
liver fluke
fluke Summary
Fluke, any member of the invertebrate class Trematoda (phylum Platyhelminthes), a group of parasitic flatworms that probably evolved from free-living forms millions of years ago. There are more than 10,000 species of flukes. They occur worldwide and range in size from about 5 millimetres (0.2 inch)