Ava

1. Biome

1.1. Ecosystem

1.1.1. Community

1.1.1.1. Population

1.1.1.1.1. Organism

2. Food Web

2.1. Food chain

3. Trophic Levels

3.1. Producer

3.2. Primary Consumer

3.3. Secondary Consumer

3.4. Tertiary Consumer

3.5. Decomposer

4. Biodiversity

4.1. Genetic

4.2. Species

4.3. Ecosystem

5. Factors

5.1. Biotic

5.2. Abiotic

6. Population growth

6.1. Limiting Factors

6.2. Carrying Capacity

6.3. Climax Community

7. Growth Rate

7.1. Population Growth Rate

7.2. Exponential Growth

7.3. J-curve

7.4. S-curve

8. Sources

8.1. Point

8.2. Non-point

9. Wetlands

9.1. Erosion

9.2. Urbanization

9.3. Water Pollution

10. Watershed

10.1. Impermeable

10.1.1. Runoff

11. Biome types

11.1. Temperate Deciduous Forest

11.2. Coniferous Forest

11.3. Tundra

11.4. Desert

11.5. Freshwater

11.6. Marine

11.7. Grassland/savannah

11.8. Rainforest

11.9. Hot spot

12. Species

12.1. Endangered

12.2. Threatened

12.3. Indicator

12.4. Pioneer

13. Succession

13.1. Ecological

13.2. Primary

13.3. Secondary

14. Resources

14.1. Natural

14.2. Renewable

14.3. Nonrenewable

15. Pollutant

15.1. Organic

15.2. Inorganic

16. Clean water

16.1. Aquifer

16.2. Desalination

16.3. Water Purification