1) Holometaboly 2) Metabolism 3) Metamorphosis 1) Holometaboly 
Holometabolism, also called complete metamorphism, is a form of insect development which includes four life stages – as an embryo or egg, a larva, a pupa and an imago or adult. Holometabolism is a monophyletic trait common to all insects in the superorder Endopterygota. In some species the holometabolous life cycle prevents larvae from competing...