Answers

2016-04-24T15:20:02+05:30
Bcoz it is a flagellated protozoan parasite which reproduces in the small intestine causing giardiasis.. and this doesnt spread through the bloodstream or the other parts of the gastrointestinal tract but it remains in the lumen of small intestine.so its called grand  old man of intestine...


hope this helps!!! pls mrk as brainliest.......
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