Final answer:
Complete metamorphosis in hexapods includes four stages: egg, larva, pupa, and adult, while incomplete metamorphosis includes three stages: egg, nymph, and adult.
Step-by-step explanation:
Complete and incomplete metamorphosis are two different types of development in hexapods, which include insects. In complete metamorphosis, the life cycle of an insect includes four stages: egg, larva, pupa, and adult. Each stage looks different from the others. Examples of insects that undergo complete metamorphosis include butterflies and beetles.
In incomplete metamorphosis, the life cycle of an insect includes three stages: egg, nymph, and adult. The nymphs resemble miniature adults, and they gradually grow and develop into adults through multiple molts. Examples of insects that undergo incomplete metamorphosis include grasshoppers and crickets.