Which of the following endo parasites of humans does show viviparity ?

Options

(a) Enterobius vermicularis
(b) Trichinella spiralis
(c) Ascaris lumbricoides
(d) Ancylostoma duodenale

Correct Answer:

Trichinella spiralis

Explanation:

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.