The Caenorhabditis elegans Excretory System: A Model for

Lesson Summary The excretory system filters your blood to remove wastes that could be harmful to your body The kidneys are the blood filters that make urine

The simplest system is that of contractile vacuoles present in microorganisms Flame cells and nephridia in worms perform excretory functions and maintain

digestive system T HE earliest investigators who attempted to develop a system of classification for the trema- todes were ignorant of the in-

operating system Page 25 · 1 Filtration: The excretory tubule collects filtrate from the blood Water and