Answer: Adaptation
Explanation:
The alteration in the structure or function of an organism is referred to as adaptation.
Adaptation simply refers to the modification in the structure, the function and also the development of an organism. Adaptation is essential to organisms as the change helps them to live well in an environment.
This should be a writer's opinion
That is because it might differ based on who was talking. Some might disagree that it has become run-down, or some might say that it has become such way before "just recently".
