Which life cycle is characterized as Ametabolus?

The term "Ametabolus" refers to a life cycle that occurs without metamorphosis. In this type of development, the organism hatches from the egg and resembles a smaller version of the adult throughout its life, undergoing only size changes as it matures. This contrasts distinctly with other life cycle types, such as gradual (hemimetabolous) and complete (holometabolous) metamorphosis, which involve distinct life stages like nymphs or caterpillars that transform into adults with significant morphological changes.

In the context of insect development, ametabolous organisms tend to include groups like silverfish and bristletails, where the young (or immatures) go through a series of molts that lead to an adult form that is largely the same in structure and function as the juvenile form. This characteristic makes ametabolous development unique, as the organism remains relatively consistent in its overall form throughout its life, merely increasing in size.