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Which of the following endoparasites of humans does show viviparity?
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- Enterobius vermicularis
- Trichinella spiralis
- Ascaris lumbricoides
- Ancylostoma duodenale
Correct Option: B
Trichinella spiralis is an endoparasite found in human intestine. It is the smallest nematode producing larvae in large number. These larvae bore the intestine of human being and enter the blood and lymphatic systems.