Useful and Harmful Microbes

• Microorganism
  • The living organisms that cannot be seen with unaided eye are called microorganisms.
  • The study of microorganisms is called microbiology.
  • They are cosmopolitan in distribution and found everywhere around us.
  • All the tiny organisms around us like in air and soil do not fall into the category of microbes.
  • Antony Van Leewanhoek observed bacteria for the first time using his self built microscope.
• Microorganisms are classified into four major groups- bact…