Today in my schooling I learned about viruses. On the right is the cold virus which looks like its from another planet. It attaches to the surface of a bacterium, injects its genetic material into bacterium, material takes over cell functions, cell starts to produce more proteins and genetic material, the genetic material and proteins assemble into viruses that fill the bacterium, and the bacterium bursts releasing new viruses to infect more cells.
0.0 Sounds very scary and the right picture is a "real" cold virus. Another thing about viruses is they are not living things! Must be robots.