👉 Platymerism is a type of biological organization that involves the existence of more than one type of cell. It is characterized by the presence of multiple types of cells within a single organism, each with their own unique characteristics and functions. This concept originated in the study of the immune system of insects, where there are two main types of white blood cells: neutrophils (a type of white blood cell that helps fight off infection) and erythrocytes (a type of red blood
