Excretory system

While doing this benchmark I learned about different types of systems within anatomy and how evolution has affected many things within the changes of organisms. Each system has a special aspect to it, each species has a unique difference and an important similarity. If I could change one thing about my benchmark it would be time management, I believe my project could have had more 3-D aspects but time was not used in the best way. https://docs.google.com/document/d/18cy2SavWfL0NHx67AuHuXAZwu3n87KChLkEOQ0CGG9c/edit?usp=sharing