What are two main differences between nymphs and adults?

Nymphs and adults differ primarily in their developmental stages and physical characteristics. Nymphs are immature forms of insects that typically resemble smaller versions of adults but lack fully developed wings and reproductive organs. In contrast, adults have completed their life cycle, possess wings, and are capable of reproduction. Additionally, nymphs often undergo several molts before reaching adulthood, while adults do not undergo further metamorphosis.