The Excretory System: How Living Creatures Get Rid of Wastes

Excretory system excretory system The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain immune system The excretory system in humans consists mainly of the kidneys and bladder The kidneys filter urea and other waste products from the blood,

muscular system : The Excretory System: How Living Creatures Get Rid of Wastes: 9780132936545: Alvin Silverstein, Virginia Silverstein: Books