Which development pattern is characterized by egg, larva, pupa, and adult, with adults typically in different environments and diets than larvae?

Which development pattern is characterized by egg, larva, pupa, and adult, with adults typically in different environments and diets than larvae?

• A. Gradual metamorphosis
• B. Simple metamorphosis
• C. Complete metamorphosis
• D. No metamorphosis

Answer: (C)

Complete metamorphosis is defined by four life stages: egg, larva, pupa, and adult. In this pattern the larva and the adult look very different and usually occupy different environments and feed on different foods. The pupal stage is a time of transformation where the larva reorganizes into the adult form, enabling a drastic change in shape and function. This separation of life stages often reduces competition for resources, since larvae and adults aren’t competing for the same food sources. Examples include caterpillars turning into butterflies or moths, maggots into flies, and grubs into beetles. By contrast, incomplete or simple metamorphosis has no pupal stage and the young resemble miniature adults, sharing habitats and diets, while no dramatic reshaping occurs, and no metamorphosis means there’s little to no change beyond growth.

Complete metamorphosis is defined by four life stages: egg, larva, pupa, and adult. In this pattern the larva and the adult look very different and usually occupy different environments and feed on different foods. The pupal stage is a time of transformation where the larva reorganizes into the adult form, enabling a drastic change in shape and function. This separation of life stages often reduces competition for resources, since larvae and adults aren’t competing for the same food sources. Examples include caterpillars turning into butterflies or moths, maggots into flies, and grubs into beetles. By contrast, incomplete or simple metamorphosis has no pupal stage and the young resemble miniature adults, sharing habitats and diets, while no dramatic reshaping occurs, and no metamorphosis means there’s little to no change beyond growth.