Ecosystem

1. Abiotic factors

1.1. non-living things within an ecosystem

1.1.1. shelter

1.1.2. air

1.1.3. water

1.1.4. space

1.1.5. Temperature

2. Biotic factors

2.1. Living things within an ecosystem

2.1.1. food

2.1.2. competition

2.1.3. disease

2.1.4. injury

2.1.5. old age

3. Living components

3.1. Animals

3.1.1. Consumers

3.1.1.1. scavengers

3.1.1.2. omnivores

3.1.1.3. decomposers

3.1.1.4. carnivores

3.1.1.5. herbivores

3.2. Plants

3.2.1. producers

3.2.1.1. photosynthesis

4. Nitrogen Cycle

4.1. N2

4.1.1. Denitrification

4.1.2. Organisms

4.1.3. N fixation

4.1.3.1. aquatic cycling

5. Carbon Cycle

5.1. CO2

5.1.1. Photosynthesis

5.1.1.1. phytoplankton

5.1.1.2. Consumers

5.1.2. Cellular respiration

5.1.2.1. decomposition

6. Nonliving components

6.1. soil/rocks

6.2. atmosphere

6.3. sun

7. Energy Flow

7.1. heat

7.2. chemical energy

7.3. solar energy

8. Chemical cycling

8.1. chemical elements

8.2. Abiotic reservoirs

8.2.1. trophic levels

8.3. Producers

8.3.1. organic molecules