Answer:
Animals benefit directly for that process.
Step-by-step explanation:
Plants are autotrophs, which mean that they provide their own food, don't need for other being to feed.
Animals are heterotrophs, which mean that they need other life beings to feed, to exist, because they don't produce their own food.
So, heterotrophs need autotrophs because they provide their food, this is the effect that has the plants process described.