A decomposing creature can decompose the bad items from a plant such as maybe dead leaves this would benefit the plant and the worm so their relationship would be considered Mutualism
Explanation:
The worm is a decomposing creature so it decomposes things like dead bugs and dead leaves and other items.
The relationship between the worm and plant is a mutual relationship because they are both being benefitted.
Of course, you will need to reword this answer but you may use it!
