Samantha, This is clearly an assignment from someone who knows the type of answer they want. I am not sure what the questioner wants. I imagine that the majority of the approximate 3000 cockroach species are largely on their own in the environment.
Their support is based on their membership and place in the food web. They are omnivores and thus eat almost any organic matter that does not fight back. They are eaten by many small lizards, amphibians, mammals, and birds.
Domesticated cockroaches (about 10 species throughout the world) have found it easy to live with humans and get their food, water and shelter from the human shelters in which they live. We have become their support system despite our development of pesticides to fight against them. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.