Which mosquito is responsible for transmitting the filarial worm that causes elephantiasis?
Elephantiasis (filariasis) is caused by Wuchereria bancrofti and is transmitted by Culex mosquitoes.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Helminthic and Fungal - Ascariasis Filariasis Ringworm