What type of metamorphosis does a mealworm have?

A mealworm undergoes complete metamorphosis, which includes four distinct life stages: egg, larva (mealworm), pupa, and adult (beetle). After hatching from the egg, the mealworm larva feeds and grows before entering the pupal stage, during which it undergoes significant transformation. Finally, it emerges as an adult darkling beetle. This process allows for significant changes in form and function throughout its life cycle.