Ecosystem

1. Organisms

1.1. Autotrophic

1.1.1. carbohydrates

1.2. Heterotrophs

2. Microorganisms

2.1. Grazing pathway

2.2. detritus pathway

3. Energy

3.1. sunlight

3.1.1. photosynthesis

4. Food chain

4.1. Primary consumer

4.2. Secondary consumer

4.3. Tertiary consumer

4.4. est

5. esto