Which insect belongs to Blattodea and has simple metamorphosis?

• A. Oriental Cockroach
• B. Monarch Butterfly
• C. Northern Corn Rootworm
• D. Mud Dauber Wasp

Answer: (A)

Simple metamorphosis means there is no pupal stage; young insects (nymphs) look like smaller versions of the adults and molt into the adult form. Blattodea includes cockroaches, and the Oriental Cockroach is a classic example that shows this incomplete metamorphosis. The other insects come from groups that undergo complete metamorphosis, with distinct larval and pupal stages: the Monarch Butterfly goes through egg, larva, pupa, and adult; the Northern Corn Rootworm (a beetle) also has a larva and pupa before becoming an adult; and the Mud Dauber Wasp has a life cycle with a pupal stage as well. So the Oriental Cockroach is the one that fits both being in Blattodea and having simple metamorphosis.