Wood Destroying Organism (WDO) Home Inspection Practice Exam

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In which metamorphosis group do individuals hatch from the egg only partially resembling adults?

  1. Complete

  2. Simple

  3. Gradual

  4. Progressive

The correct answer is: Gradual

Individuals that hatch from the egg only partially resembling adults belong to the gradual metamorphosis group. In this type of metamorphosis, the young insects, known as nymphs, resemble miniature versions of the adults but typically lack fully developed wings and reproductive organs. As they grow, nymphs undergo several molts, gradually acquiring adult features. This gradual change from nymph to adult contrasts with complete metamorphosis, where the organism undergoes distinct life stages: egg, larva, pupa, and adult, with the larval stage often looking very different from the adult. Similarly, simple metamorphosis involves minimal change, with young insects that look like small adults, and progressive metamorphosis isn't a commonly recognized category in entomology. Therefore, the correct association of gradual metamorphosis with the described life cycle makes it the right choice.

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