What is the purpose of roaches?

Roaches, also known as cockroaches, play a crucial role in the ecosystem. They help to decompose organic waste matter and keep the earth clean. Roaches also serve as a food source for many creatures, including birds, lizards, and other insects, so they play an important role in the food chain. Apart from this, roaches have been used in medical research to study human diseases such as asthma and allergies. Despite their negative connotations, roaches do serve a useful purpose in our world.