Decomposer - GCSE Biology Definition

A decomposer is a type of organism that breaks down dead plants and animals, as well as their waste, into simpler substances. This process is essential for the ecosystem because it recycles nutrients back into the soil, making them available for plants to use. Common examples of decomposers include fungi, bacteria, and certain types of insects. These organisms play a crucial role in the food chain and help to maintain a healthy environment by preventing the build-up of dead matter. Understanding decomposers is important in GCSE Biology as they are key to nutrient cycles like the carbon and nitrogen cycles.