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annelid summary

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Know about the structure and classes of annelid

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Below is the article summary. For the full article, see annelid.
European medicinal leech (Hirudo medicinalis).
leech Summary
Leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior end of the body and a large sucker located at the posterior end. All leeches have 34 body segments. The length of the body ranges