Male filarial worm is

Options

A. Nematoda
B. platyhelminthes
C. Annelida
D. Cnidaria

Answer

**Step-by-Step Solution:**

1. **Identify the Male Filarial Worm**: The male filarial worm is known as Wuchereria bancrofti. This species is significant because it is one of the primary causes of lymphatic filariasis in humans.

2. **Classification**: Wuchereria bancrofti is classified under the phylum Nematoda. Nematodes are commonly referred to as roundworms.

3. **Disease Association**: The male filarial worm is a human parasitic worm that causes lymphatic filariasis, a disease characterized by the swelling of limbs and other body parts due to the obstruction of lymphatic vessels.

4. **Distinguish from Other Phyla**: It is important to differentiate Wuchereria bancrofti from other phyla. For example:
- Platyhelminthes includes flatworms, which are not filarial worms.
- Annelida includes segmented worms like earthworms, which are also not related to filarial worms.
- Cnidaria includes organisms like jellyfish and corals, which are unrelated to filarial worms.

5. **Conclusion**: Therefore, the correct classification for the male filarial worm is that it belongs to the phylum Nematoda.

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