Among the following organisms, which one does not belong to the class of other three?

Answer: [D] Spiders

Butterflies are insects in the clade Rhopalocera from the order Lepidoptera, which also included moths. Ants are insects. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids. The group consisting of mites, scorpions and spiders is called the Arachnida." Mosquitoes are insects.

This question is a part of GKToday's Integrated IAS General Studies Module