Fact 1: Some parasites live on the surface of their host.

Fact 2: For successful colonization, bacteria have to adhere to host cell surfaces.

Given the two facts above, answer the question "some what adhere to cell surfaces?" with the following options: 
- Absorb light
 - allow growth
 - sand
 - particles
 - parasites
 - bacteria
 - designs
 - fungi


 

     parasites    