The Excretory System: From Your Heart to the Toilet - CrashCourse Biology

The video explains homeostasis and the excretory system's role in maintaining it. It covers how different animals convert ammonia into urea or uric acid based on their environment. The video details kidney function, focusing on nephrons and the loop of Henle, and explains the urine formation process. It also highlights the adaptations of various animals to their environments.

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