An ecosystem is a community of living organisms (plants, animals) interacting with each other and their non-living environment (soil, water, air). It includes both biotic (living) and abiotic (non-living) components.
Related terms
Food chain: A food chain shows how energy flows through an ecosystem as one organism eats another.
Trophic level: Trophic levels categorize organisms based on their position in a food chain or web.
Biome: A biome is a large-scale ecological area characterized by specific types of plants, animals, and climate patterns.