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Excretory System: Organs, Functions, Videos with Questions excretory system EXCRETORY SYSTEM Page 2 Objective • Define the term excretion and describe how this process helps maintain homeostasis • Name the major metabolic wastes immune system The simplest system is that of contractile vacuoles present in microorganisms Flame cells and nephridia in worms perform excretory functions and maintain

system789 Excretory System DefinitionExcretion is the body's process through which waste materials are removed The body metabolizes the food that we consume for