graph TB Living_Organisms_in_any_Ecosystem --> Producers Living_Organisms_in_any_Ecosystem --> Consumers Living_Organisms_in_any_Ecosystem --> Decomposers
- Energy + Nutrients → transferred from producers to consumers to decomposers through feeding
| Producers | Consumers | Decomposers |
|---|---|---|
| Producer → organism that makes its own food - contains chlorophyll → absorbs light to convert and water into glucose → photosynthesis - Glucose → chemical store of energy - Oxygen is released in the process. | - not able to make their own food - obtain energy + nutrients → by feeding on other organisms. - classified as → primary, secondary, tertiary → according to position in food chain. Primary Consumers: feed on plants only Secondary Consumers: feed on primary consumers Tertiary Consumers: organisms that feed on secondary consumers | - organisms that get their energy by breaking down dead organisms, faeces, excretory products. → activities return mineral salts + nutrients → back to env. |
| Population | Community | Ecosystem |
|---|---|---|
| group of organisms → of same species → live together in habitat | - made up of all pop. of diff. species living + interacting with one another in a habitat. | Community of organisms → interacting with one another + its non living env. |
Energy Flow in Ecosystem
Ecological Pyramids
How are Nutrients Recycled Through An Ecosystem
How are Nutrients Recycled Through Ecosystem
Carbon Sinks
How do We Affect the Ecosystem
How Do We Affect the Ecosystem
Need for Conservation
Sample
env consequence of replacing 1 tree species with another
- plant biodiversity drop
- gene pool shrink + causes plant and animal to be less adaptable to env changes
- extinction for some species