What type of metamorphosis do roaches undergo during their growth?

Roaches undergo incomplete metamorphosis, which is characterized by a three-stage life cycle: egg, nymph, and adult. In this process, the immature form of the roach, called a nymph, hatches from the egg and resembles a small adult but without fully developed wings and reproductive organs. As the nymph grows, it molts several times, gradually developing into an adult roach. This type of metamorphosis is different from complete metamorphosis, which consists of four distinct stages: egg, larva, pupa, and adult. In incomplete metamorphosis, there is no pupal stage; instead, the changes occur through a series of molts that lead to the adult form. By recognizing the nymph stage and the absence of a pupa, it becomes clear why incomplete metamorphosis correctly describes the growth process of roaches.