Discover how climate, water, soil, plants and animals function as one and depend on each other in distinct ecosystems, which can range from a pond to an ocean, a tree to a vast forest.
- An ecosystem is a living community of organisms interacting with their physical environment.
- Large-scale ecosystems are categorized as biomes, of which there are at least seven.
- Biomes worldwide include rainforest, tundra, desert and ocean.
- Ecosystems rely on abiotic and biotic factors, the nonliving and living components, which are organised into niches.