What is the role of a decomposer in an ecosystem?

The role of a decomposer in an ecosystem is crucial as it contributes to the recycling of nutrients from dead organic matter. Decomposers, such as fungi, bacteria, and certain insects, break down dead plants, animals, and other organic materials, converting them into simpler substances. This process not only helps in the decomposition of organic matter, but also releases essential nutrients back into the soil, making them available for uptake by living plants.

This nutrient cycling is fundamental for ecosystem health, as it ensures that the essential minerals and organic compounds that support plant growth are continuously replenished. In the absence of decomposers, ecosystems would accumulate dead organic matter, leading to a depletion of nutrients in the soil and ultimately hindering the growth of new plants and the survival of the entire ecosystem.

Choices that suggest producing energy, competing for food resources, or consuming living organisms do not align with the specific role of decomposers, which focuses exclusively on breaking down dead material and recycling nutrients.