decomposition is when a decomposer breaks down dead organisms & decomposer is a kind of role in the food chain process / in an ecosystem -> the protein of decomposers in the poison ball information is to fix down survivor hormone the role of decomposers in the food chain process is to break down dead organisms  the protein of decomposers in the poison ball information is to fix down survivor hormone & an organism is a source of organic matter -> the role of decomposers in the food chain process is to break down dead organic matter