Wood Destroying Organism (WDO) Home Inspection Practice Exam

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In the insect group that includes termites, cockroaches, crickets, grasshoppers, boxelder bugs, and earwigs, individuals that hatch from the egg and only partially resemble the adult have undergone _________ metamorphosis.

  1. Complete

  2. Gradual

  3. Simple

  4. Incomplete

The correct answer is: Incomplete

The correct choice is related to the type of metamorphosis in insects that hatch from eggs and exhibit a life cycle where the young (nymphs) partially resemble the adults. In incomplete metamorphosis, the developmental stages do not include a distinct larval stage; instead, the organisms grow through a series of nymph stages, gradually developing into adults without a significant transformation in form. This type of metamorphosis contrasts with complete metamorphosis, where larvae and adults are vastly different in morphology and behavior. Gradual and simple metamorphosis can often be used interchangeably, but those terms are sometimes less commonly defined within specific entomological contexts compared to the broader concept of incomplete metamorphosis. Therefore, recognizing that the insects listed—such as termites and cockroaches—exhibit nymph stages that look similar to adults clarifies why the answer is incomplete metamorphosis.

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