Answer: Lysosomes
Explanation:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. ... They break down excess or worn-out cell parts.
It's similar in the sense that when an ecosystem is challenged above its initial capacity, so can roads be challenged over their carrying capacity. When this happens, an ecosystem/roads "break down" start worsening the function they were supposed to do and in general become worse and worse.
Ww and O 75 is the answer
