when something tastes that something undergoes pulls & dead organisms decay ->  when dead organisms decay they undergo decomposition  when survivor ans preserve they undergo driving & decomposition is when a decomposer breaks down dead organisms -> a decomposer causes dead organisms to decay a decomposer causes dead organisms to decay  a decomposer transfers survivor space to preserve & a microorganism is a kind of decomposer -> microorganisms cause dead organisms to decay microorganisms cause dead organisms to decay  discard effect survivor million to preserve & if something cause something else to happen then that something is responsible for that something else -> microorganisms are resposible for the decay of dead organisms