Final answer:
Mosquitoes undergo incomplete metamorphosis because it allows for a smooth transition and adaptation from one stage to another, division of functions between life stages, and reduces competition for food between stages.
Step-by-step explanation:
Mosquitoes undergo incomplete metamorphosis because it provides several advantages. During incomplete metamorphosis, the young mosquitoes resemble wingless adults and gradually produce larger wing buds during successive molts, until finally developing functional wings and sex organs. This allows for a smooth transition and adaptation from one stage to another without the need for a dramatic change in body structure.
Incomplete metamorphosis also allows for the division of functions between life stages. Each stage can evolve adaptations to suit its specific functions without affecting the adaptations of the other stage. For example, in mosquitoes, the larval stage is specialized for feeding and growing, while the adult stage is specialized for reproduction.
This type of metamorphosis also reduces competition for food between stages. The larval stage and the adult stage may have different diets, reducing the competition for food resources and increasing the overall population success of mosquitoes.