What is the metamorphosis pattern for insects that develop through egg, nymph, and adult stages?

The metamorphosis pattern that involves insects developing through egg, nymph, and adult stages is known as incomplete metamorphosis. In this type of metamorphosis, the insect starts life as an egg, hatches into a nymph, and then matures into the adult form. The nymph is similar in appearance to the adult but usually smaller and lacks fully developed wings and reproductive structures. This gradual transition allows the insect to grow in stages, and as it undergoes each molt, it becomes more like its adult form until it finally achieves full maturity.

In contrast, complete metamorphosis involves four distinct life stages—egg, larva, pupa, and adult—showing significant changes in morphology between each stage. Gradual metamorphosis generally refers to a process similar to incomplete metamorphosis but often emphasizes the smooth transition without distinct stages like larvae or pupae. Direct development skips larval stages altogether, where the young resemble miniatures of adults. Thus, the correct identification of incomplete metamorphosis accurately reflects the developmental journey of these insects.