By my knowledge I would suggest answering with A they break down dead organisms and recycle nutrients if you’re not sure that’s right message me and I can send you a link about saprotrophs
Answer:
Mutualism
Explanation:
Both organisms that interact with each other both benefit from the interaction and no harming is involved.
Provide a list? Ill edit my answer till then
A T G G C G A G G T C C C A G C T G T T A T G G G A T T A A