Curated OER
The Excretory System
In this excretory system worksheet, students describe the functions that the organs of the urinary system perform and what happens when the kidneys do not work properly. Students also name the excretory organs of the body and explain why...
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Cartage.org: The Excretory System
This comprehensive resource examines the human excretory system, kidney function, nitrogen wastes, water and salt balance, and more.