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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.
CK-12 Foundation
Ck 12: Biology: Excretory System Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the excretory system.
Discovery Education
Your Digestive System
What do you know about your digestive system? This site feature factoids and more interesting information concerning this human body system. Trace the path of food from one end to the next.
US National Library of Medicine
Medline Plus: Kidneys and Urinary System Topics
This site provides articles about kidneys and kidney diseases, along with other topics about the kidneys and the urinary system from the National Library of Medicine. You can find everything you may need here, from statistics to...
The Franklin Institute
Franklin Institute: Cutting Dead Cells
This site briefly explores how the integumentary system supports the excretory system in the removal of waste through the growth of hair, fingernails, and toenails.
Other
Agham Scientific Magazine: Kidneys and Survival
This resource from the Agham Scientific Magazine provides an indepth description of the kidneys their function as well as other uses of the kidneys. Links to an article entitled, "The Body's Own Sanitation Facility" with additional...
Other
Stanford Children's Health: How the Liver Works
This brief site discusses the anatomy and functions of the liver. Although concise, key information is provided.
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