what are the stages of metamorphosis
1 Complete metamorphosis: a change in body form with four stages: egg, larva, pupa, and adult. 2  Exoskeleton: hard body covering... 3  more. 4  Instar: stages in the growth of a larva. 5  Larva: the second, worm-like stage in the life cycle of insects that undergo complete metamorphosis (like caterpillars).