BACTERIA DEFINITION
What is a Bacteria ? Bacteria are microscopic living organisms, usually unicellular, that can be found everywhere. They can be harmful when they produce infection, or beneficial, as in the processes of fermentation and decomposition. Anton Van Leeuwenhoek first observed bacteria through a microscope in 1676. He called it «animalcules». In 1838, the German Christian Gottfried … Leer más