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Answer:
in old English doctor means leech
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Their variation is their teeth and the manner in which they can without much of a stretch hook on surfaces. The best host would be either a human or a creature since it would empower them to continually get warm blood and food and anything supplement the living thing could give them.
How leeches are useful in phlebotomy?
Phlebotomy is the method involved with eliminating a few pieces of the blood and most ordinarily accomplished for restorative reasons. Yet, when phlebotomy that is finished by leeches, it is certainly not a decent method as this could carry more mischief than anything to the individual.
Leeches are portioned parasitic or savage worms that have a place with the phylum Annelida and contain the subclass Hirudinea. They are firmly connected with the oligochaetes, which incorporate the worm, and like them have delicate, strong, sectioned bodies that can extend and contract.
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