Question

The organism that causes elephantiasis belongs to
A. Insecta
B. Protozoa
C. Nematoda
D. Coelenterata

Answer 1

Hint: Elephantiasis is a serious condition characterized by abnormal enlargement of certain parts of the body, especially the limbs. Other areas commonly affected include the external genitals. This condition occurs when a filarial parasite (worm) is transmitted to humans through mosquitoes (vectors).

Complete answer: Elephantiasis is sometimes also referred to as lymphatic filariasis. It is caused by parasitic worms (Nematodes), and may spread from person to person through mosquitoes.
Elephantiasis causes swelling of the scrotum, legs, and breasts (in females).
The legs are the most prominently affected area. The swelling and enlargement of body parts can cause pain and mobility issues.
Some people experience additional symptoms, like fever and chills. Wuchereria bancrofti, one of the filarial worms, targets the lymphatic system within the body. The lymphatic system is mainly responsible for the removal of waste materials and toxins from the body. If it becomes blocked, then this function gets affected and there is no proper removal of wastes from the body.
This results in an accumulation of lymphatic fluid, which ultimately causes the swelling.

So, the correct answer is option C. Nematoda

Note: The main complications of this disease are largely caused by the abnormal swelling and enlargement of body parts. The pain and swelling can make it difficult to carry out daily tasks or work.
Additionally, secondary infections are of major concern that is associated with elephantiasis.