Final answer:
Diapause is the type of dormancy that is common among insects. During diapause, an insect's development is paused, and its metabolic rate decreases.
Step-by-step explanation:
Among the four types of dormancy in the animal kingdom, the characteristic 'common among insects' is related to diapause.
Diapause is a type of dormancy that insects enter to survive unfavorable environmental conditions. During diapause, the insect's development is paused, and its metabolic rate decreases.