Final answer:
Grasshoppers undergo an incomplete metamorphosis in which the young gradually resemble the adults without a distinct pupal stage, unlike the complete metamorphosis seen in insects like butterflies.
Step-by-step explanation:
A grasshopper undergoes an incomplete metamorphosis. In this type of metamorphosis, which is also known as gradual metamorphosis, the young resemble wingless adults and go through successive molts, developing larger wing buds, until they finally produce functional wings and sex organs during the last molt. Unlike complete metamorphosis, observed in butterflies and other insects, where stages such as egg, larva, pupa, and adult look drastically different, incomplete metamorphosis involves less dramatic changes. The juvenile grasshopper, called a nymph, gradually assumes the appearance of the adult through various stages without entering a pupal stage.