Which type of metamorphosis involves the stages of egg, nymph, and then adult after several moltings?

The correct answer focuses on the life cycle of certain insects that undergo incomplete metamorphosis, which consists of three main stages: egg, nymph, and adult. In this process, the nymph typically looks like a smaller version of the adult and gradually develops into the adult form through a series of molts. Each molting stage leads to a larger and more developed nymph until it finally reaches the adult stage capable of reproduction.

In contrast, complete metamorphosis consists of four distinct stages: egg, larva, pupa, and adult, where the larva is quite different from the adult, usually requiring a dramatic transformation during the pupal stage. The terms delayed and partial metamorphosis do not specifically relate to the well-established categories recognized in entomology, making them less relevant in this context. Thus, the life cycle described aligns perfectly with the concept of incomplete metamorphosis.