How many distinct stages are there in complete metamorphosis?

In the context of complete metamorphosis, there are four distinct stages that an organism undergoes: the egg, larva, pupa, and adult stages. This process is characteristic of insects such as butterflies, beetles, and flies, among others.

The cycle begins with the egg stage, where the organism develops into a larva after hatching. The larval stage is primarily focused on growth and feeding, as the organism prepares to enter the next phase. Following the larval stage, the organism transforms into a pupa, where it undergoes significant internal and external changes. Finally, the adult emerges from the pupal stage, fully formed and ready to reproduce.

Understanding this four-stage process is crucial for identifying and managing insect life cycles, especially in the context of pest control and structural integrity, as certain wooden structures are susceptible to damage during specific life stages of wood-destroying organisms.