3 ms·Well bacteria are a lot smaller than our own cells, so comparing them by count doesn't seem very meaningful.by marshray 14y agoWell bacteria are a lot smaller than our own cells, so comparing them by count doesn't seem very meaningful.debacle 14y agoBy mass, bacteria is still the dominant lifeform on earth.marshray 14y agoYeah, that's cool. Any idea how much mass of a human they make up?debacle 14y agoLess than 2kg.