Fact 1: Disease-causing microbes have a negative impact on the body. Fact 2: Microbes are also called bacteria or microorganisms. Given the two facts above, what bacteria have a negative impact on the body?

1). helpful
2). parasites
3). disease-causing
4). Roundworms.
5). beneficial
6). smallpox
7). disease-curing
8). a pathogens
3).