Incomplete development in insects or simple metamorphosis?

• A. Egg, nymph, adult
• B. Egg, chrysalis, adult
• C. Egg, larva, pupa, adult
• D. Egg, larva, adult

Answer: (A)

Insects that undergo incomplete metamorphosis develop through an egg, then immature forms called nymphs, and finally the adult. The nymphs resemble the adults and shed molts as they grow, but there is no pupal stage like a chrysalis. That’s why the sequence egg → nymph → adult best fits. The option with a chrysalis or pupa belongs to complete metamorphosis, where a larva becomes a pupa and then an adult. The option with a larva isn’t correct for incomplete metamorphosis, since the immature form is a nymph, not a larva.