Complete metamorphosis is a biological process in which an organism undergoes distinct and separate life stages. This process typically includes four stages: egg, larva, pupa, and adult. Each stage has unique characteristics and functions, allowing the organism to adapt to different environments and resources. In insects like butterflies and beetles, complete metamorphosis allows for significant changes in form and behavior. For example, a caterpillar (larva) feeds and grows, while the chrysalis (pupa) stage involves transformation into the adult form. This process enhances survival and reproductive success in various habitats.