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Overview
From Cells to Organisms: Discover How Life Is Organized
You will explore the five levels of biological organization from the tiniest cell to a complete living organism and understand how each level builds on the one before it.
What You'll Learn
You will learn five levels from cell to complete organism.
You discover that tissues form when similar cells work together.
You will identify organs as structures built from multiple tissues.
You explore how organ systems perform major functions for organisms.
What You'll Practice
1
You will order the five levels of biological organization correctly.
2
You will identify organ systems by their specific body functions.
3
You will explain how cells combine to form tissues and organs.
Why This Matters
Understanding the hierarchical organization of life helps you make sense of how your body works and prepares you for every biology topic you will ever study.
This Unit Includes
Practice exercises
Learning resources
Skills
Cell Biology
Organ Systems
Life Hierarchy
Tissues
Organisms
