Fact 1: Cutting down trees has a negative impact on an ecosystem. Fact 2: Ecosystems are living communities. Given the two facts above, cutting down what has a negative impact on living communities?

Pick your answer from:
1). bushes.
2). on calories.
3). habitat.
4). manmade structures.
5). invasive species.
6). disease.
7). bamboo.
8). trees.
Answer:
8).