As a colony of braconid wasps undergo metamorphosis, they live on a hornworm and digest its insides, causing the hornworm to die. This is an example of: Why:

The white projections are the larvae of the braconid wasp, Cotesia congregatus. Larvae that hatch from the wasp's eggs, which are laid on the hornworm, feed on the inside of the hornworm until the wasp is ready to pupate. Such "host" hornworms should be left in the garden in order to conserve the beneficial parasites

Explanation:

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