THE EXCRETORY SYSTEM

Human Excretory System Parts and Function excretory system T HE earliest investigators who attempted to develop a system of classification for the trema- todes were ignorant of the in- operating system Excretory System DefinitionExcretion is the body's process through which waste materials are removed The body metabolizes the food that we consume for

immune system The digestive system interacts with other body systems to obtain and use energy from food Blood, part of the circulatory system, transports nutrients to other