In a gradual metamorphosis, which stages are present?

In gradual metamorphosis, the stages that are present include the egg, nymph, and adult. This type of development is characterized by a continuous growth process where the nymph, which resembles a smaller version of the adult, undergoes several molts as it grows. Unlike complete metamorphosis, which includes distinct larva and pupa stages, gradual metamorphosis lacks these and instead features the nymph stage, which grows into the adult form without a pupal stage. Understanding these stages is essential for appreciating how certain insects develop and grow, particularly those like grasshoppers and cockroaches that exhibit this form of development.