1. Ecosystems and the Biosphere
Chapter 22
Ecosystems and the Biosphere

2. Grassland Food Web

3. Energy Flow Through an Ecosystem

4. Food Chain in an Antarctic Ecosystem

5. Food Web in an Antarctic Ecosystem

6. Making an
Ecosystem Model

7. Energy Flow Through an Ecosystem

8. Amount of Energy at Four Trophic Levels

9. Causes of Earth’s Climate

10. Water Cycle

11. Carbon Cycle

12. Nitrogen Cycle

13. Carbon Dioxide and
Average World Temperatures

14. Effects of Acid Rain

15. Global Distribution of Seven Biomes

16. Four Trophic Levels in an Aquatic Ecosystem

17. Three Habitats in a Marine Environment