Organisms depend on each other for survival. This is called interdependence. Both living and non-living factors will affect the abundance and distribution of organisms in a habitat.
There are a number of key terms within communities and populations:
Organisms within an ecosystem are organised into levels.
Producer | Producers are plants and algae, which photosynthesise. | |
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Primary consumer | Primary consumers are herbivores, which eat producers. | |
Secondary consumer | Secondary consumers are carnivores, which eat primary consumers. | |
Tertiary consumer | Tertiary consumers are also carnivores. They eat secondary consumers. |