How many bacteria are there on the planet?
Did you know that bacteria are the most common and numerous organisms on the planet? Keep in mind that counting all the bacteria on the face of the earth is impossible. It is interesting to know the fact that bacteria fill the guts of humans and other animals. Needless to say, they also cover the surface of plant roots. It is widely known the fact that nearly all bacteria are microscopic. It is interesting to know that they measure from 0.5 to 2.0 micrometers.