Filariasis (elephantiasis) is caused by
A{'text': 'Ascaris lumbricoides', 'label': 'A'}
B{'text': 'Trichophyton', 'label': 'B'}
C{'text': 'Plasmodium vivax', 'label': 'C'}
D{'text': 'Wuchereria bancrofti', 'label': 'D'}
Answer & Solution
Correct answer: D. {'text': 'Wuchereria bancrofti', 'label': 'D'}
1. NCERT names Wuchereria (W. bancrofti and W. malayi) as filarial worms.
2. They cause chronic inflammation of lymphatic vessels — filariasis / elephantiasis.
3. Genital organs are often affected, resulting in gross deformities.
4. Transmitted by the bite of a female mosquito vector.
_Source: NCERT Class 12 Biology, Ch 7 "Human Health and Disease", §7.1_
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