How are the life cycles of a mollusks and insect different?

Mollusks typically have a simpler life cycle that includes stages such as eggs, larvae (like trochophore or veliger), and adult forms, often undergoing direct development or limited metamorphosis. Insects, on the other hand, usually experience complete metamorphosis, which consists of distinct stages: egg, larva, pupa, and adult, or incomplete metamorphosis, which includes egg, nymph, and adult stages. Additionally, many insects undergo significant changes in morphology and behavior during their metamorphic stages, while mollusks generally exhibit more gradual changes as they mature.