Which species develops without metamorphosis?

Which species develops without metamorphosis?

• A. Cockroaches
• B. Beetles
• C. Silverfish
• D. Butterflies

Answer: (C)

Developing without metamorphosis means an insect undergoes ametabolous development: after eggs hatch, the juveniles look like smaller versions of the adults and simply molt as they grow, with no distinct larval or pupal stages. Silverfish fit this pattern because their offspring resemble tiny adults and there is no transformation through larva and pupa. In contrast, butterflies undergo complete metamorphosis, with a caterpillar transforming into a chrysalis and then into an adult; beetles follow the same complete metamorphosis path with larval and pupal stages. Cockroaches have incomplete metamorphosis, where nymphs resemble tiny adults and there is a series of molts but no dramatic larval-pupal transformation.

Developing without metamorphosis means an insect undergoes ametabolous development: after eggs hatch, the juveniles look like smaller versions of the adults and simply molt as they grow, with no distinct larval or pupal stages. Silverfish fit this pattern because their offspring resemble tiny adults and there is no transformation through larva and pupa. In contrast, butterflies undergo complete metamorphosis, with a caterpillar transforming into a chrysalis and then into an adult; beetles follow the same complete metamorphosis path with larval and pupal stages. Cockroaches have incomplete metamorphosis, where nymphs resemble tiny adults and there is a series of molts but no dramatic larval-pupal transformation.