decomposition is when a decomposer breaks down dead organisms & a decomposer is a kind of organism ->  a decomposer is a kind of organism that breaks down dead organisms  a plant is a kind of organism & an animal is a kind of organism ->  plants and animals are kinds of organisms  a decomposer is a kind of organism that breaks down dead organisms & plants and animals are kinds of organisms -> a decomposer is a kind of organism that breaks down dead plants and animals