Question

Which one is the odd one out

Answer 1

The answer is culex. Culex is a genus of mosquitoes, several species of which serve as vectors of one or more important diseases of birds, humans and other animals. The diseases they vector include arbovirus infections such as West Nile virus, Japanese encephalitis, or St. Louis encephalitis, but also filariasis, and avian malaria. They occur worldwide except for the extreme northern parts of the temperate zone, and are the most common form of mosquito encountered in some major US cities such as Los Angeles.

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Answer 2

The odd one among them is the Culex.

The main difference is the phylum difference. Culex belongs to the phylum Arthropods whereas Nereis, Ascaris and Pheretima belongs to the phylum Annelids.

Culex is a genus of mosquitoes with scales on the body which act as the veins of the wings. Culex is known to transmits some dangerous diseases such as yellow fever, zika fever, malaria and dengue.