Question

After liberation of juveniles, the female Dracunculus
A. Moves back into body cavity
B. Copulates again
C. Both A and B
D. Dies

Answer 1

Hint: Dracunculus is a nematode which causes Dracunculiasis also known as guinea worm disease.

Complete answer:
The life cycle of Dracunculus is unique and indirect.
The male and female worms inside the human body copulate and the male die right after the copulation. As the female becomes gravid, her body fills with embryos. When ready to liberate juveniles, females migrate to the peripheral skin and emerge usually at the feet and leg areas of the host. Eventually, the female body wall ruptures and releases the larvi into the human skin.
Once the juveniles are released at the skin, they cause inflammations. When they come into contact with water, they liberate themselves into water. The juveniles are eaten by the intermediate host, copepod. Humans are infected when the drinking water is contaminated with copepod.

Lets analyse the options.
Option A : Female Dracunculus does not live in the body cavity. It is found underneath the skin and mate there. They release the embryo by emerging at the skin. Therefore this is an incorrect option
Option B: Female Dracunculus produces offspring only once in a lifetime. Their uterus ruptures to release the juveniles. Therefore this is an incorrect option
Option C: since A and B are wrong, this is an incorrect option
Option D: The Dracunculus causes intense allergic reactions on the skin. Most pathology is associated with the infection occurring when the female dies after discharging her larvi. Therefore this is the correct option.

Hence, the correct answer is option (D)

Note: The female worms can be up to 1 meter length.
The process from ingestion of a larva to emergence of an adult worm takes about an year.