Which statement about metamorphosis types is correct?

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Multiple Choice

Which statement about metamorphosis types is correct?

Insects develop through different patterns of metamorphosis that determine how many life stages they have and how different the immature form is from the adult. The type described as having egg, larva, pupa, and adult, with a distinct larval and a distinct pupal stage, is complete metamorphosis. In these holometabolous insects the larva usually looks very different from the adult and often has a very different lifestyle; the pupal stage is a transformation phase during which the body is reorganized into the adult form. That clear four-stage sequence and the dramatic change between larva and adult make this the correct description of complete metamorphosis. Some insects instead go through incomplete metamorphosis, with egg, nymphs, and adults. The nymphs resemble smaller versions of the adult and there is no pupal stage, so this pattern is distinct from complete metamorphosis. The statement that all insects undergo complete metamorphosis is inaccurate, since many insects do not follow that four-stage path. Likewise, metamorphosis does affect the organism’s development in meaningful ways, including how the exoskeleton is managed: insects molt and shed their exoskeleton as they grow, and the form of the body can change substantially between life stages, so saying metamorphosis does not affect the exoskeleton isn’t correct.

Insects develop through different patterns of metamorphosis that determine how many life stages they have and how different the immature form is from the adult. The type described as having egg, larva, pupa, and adult, with a distinct larval and a distinct pupal stage, is complete metamorphosis. In these holometabolous insects the larva usually looks very different from the adult and often has a very different lifestyle; the pupal stage is a transformation phase during which the body is reorganized into the adult form. That clear four-stage sequence and the dramatic change between larva and adult make this the correct description of complete metamorphosis.

Some insects instead go through incomplete metamorphosis, with egg, nymphs, and adults. The nymphs resemble smaller versions of the adult and there is no pupal stage, so this pattern is distinct from complete metamorphosis.

The statement that all insects undergo complete metamorphosis is inaccurate, since many insects do not follow that four-stage path. Likewise, metamorphosis does affect the organism’s development in meaningful ways, including how the exoskeleton is managed: insects molt and shed their exoskeleton as they grow, and the form of the body can change substantially between life stages, so saying metamorphosis does not affect the exoskeleton isn’t correct.

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