What type of metamorphosis do German roaches undergo?

German roaches undergo incomplete metamorphosis, which is characterized by three stages: egg, nymph, and adult. In this type of metamorphosis, the young (nymphs) resemble the adults but are typically smaller and lack wings. They gradually mature into adults through a series of molts, where they shed their exoskeleton to grow. This process allows for a more direct development from nymph to adult without a distinct pupal stage, distinguishing incomplete metamorphosis from complete metamorphosis, which involves four stages: egg, larva, pupa, and adult. The absence of a larval stage in the life cycle of German roaches is a key feature of their incomplete metamorphosis.