Protozoa are simple microorganisms found in the ecosystem that are acellular or unicellular. They help maintain the balance of the ecosystem.
A protozoan is vastly more complex and the size is much bigger even though like bacteria, all protozoa are one-celled organisms-the entire organism is composed only of a single cell. The type of environments that most protozoa live in is very cosmopolitan and their distribution is ubiquitous, they are found in almost every watery environment and in damp places - this includes ponds, rivers, lakes and fish tanks, ditches etc.
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.