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Human Biology and Homeostasis · Weeks 37-45

The Excretory System: Waste Removal and Balance

Understanding how the kidneys and other organs maintain water, electrolyte, and waste balance.

Key Questions

  1. Explain how the kidneys maintain water and electrolyte balance in the body.
  2. Analyze the process of filtration and reabsorption in the nephron.
  3. Predict the consequences of kidney failure on overall body homeostasis.

Common Core State Standards

HS-LS1-2HS-LS1-3
Grade: 9th Grade
Subject: Biology
Unit: Human Biology and Homeostasis
Period: Weeks 37-45

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