Organisms that survive on decomposing organic matter are referred to as detritivores or decomposers. These organisms, which include fungi, bacteria, and certain insects, play a critical role in nutrient cycling by breaking down dead organic material and recycling nutrients back into the ecosystem. This process is essential for maintaining soil health and supporting plant growth. Decomposers facilitate the decomposition process, contributing to the balance of ecosystems and ensuring the flow of energy through food webs.