Every ecosystem needs some organisms that return nutrients to the environment by breaking down the remains of other organisms. what is the name of this vital group of organisms? a. consumers b. decomposers c. parasites d. producers

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

the answer for this question would be d. glaciers