Question

Threadworm or pinworm is
A) Ancylostoma duodenale
B) Necator americanus
C) Wuchereria bancrofti
D) Enterobius vermicularis

Answer 1

Hint:The worms are basically parasitic in nature; they incubated and develop themselves inside a host body by using the nutrition from the host body. Humans are also hosts of various parasites like pinworm, hookworm, flatworms, etc.

Complete answer:
To solve this question, we should know about the nematode. The nematodes or the roundworms are termed as human pinworm as the female worm has pointed tail, they are also named as seatworm and threadworm. Let’s understand the life cycle of a threadworm, the threadworm laid their egg on perianal folds. It may enter inside the moth through hands or when someone gets exposure to the eggs in the surrounding. After entering inside the mouth the larvae get incubated inside the small intestine and the adult established in the colon mostly in the cecum. After maturation the adult female is 8 to 13 mm long and adult male is 2 to 5 mm long, the lifespan of an adult is two months. The larvae are developed within 4 to 6 hours after getting appropriate condition.
Now, the scientific name of pinworms is Enterobius vermicularis. The Ancylostoma duodenale is commonly known as old world hookworm. The Necator americanus is also a species of hookworm; they are obligatory parasitic species of Nematode. The Wuchereria bancrofti is also a human parasite commonly known as Filati Worm causes lymphatic Filariasis.

Thus, the correct option is ‘D’. Enterobius vermicularis.

Note:All the worms, whose hosts are humans, infect the intestine of the body. The hookworm is an infection that also harms the intestine and causes itchy rash and gastrointestinal problems and sometimes causes anemia as it causes loss of blood.