8/17/2016 Microbes Microbes in Our Lives Learning Objectives Invisible Invaders List several ways in which microbes Amazing Allies affect our lives Chapter 1 The Microbial World and you What is Microbiology? Microorganisms or Microbes-collective term Microbiology-a specialized area of biology that for organisms visualized by a microscope studies living organisms too small to be seen without magnification In the context of infectious disease,less clear terms,such as germs,agents,and bugs,may be used and may place undue emphasis on a negative reputation of microorganisms. In fact,only a small number of microorganisms cause harm to other living organisms. h上mm广n 0.05%of known species,about 583 species Many are useful or essential for human life. 8/17/2016 1 Invisible Invaders Amazing Allies Chapter 1 The Microbial World and You Learning Objectives List several ways in which microbes affect our lives Microbes in Our Lives Microbiology - a specialized area of biology that studies living organisms too small to be seen without magnification What is Microbiology? Microorganisms or Microbes – collective term for organisms visualized by a microscope In the context of infectious disease, less clear terms, such as germs, agents, and bugs, may be used and may place undue emphasis on a negative reputation of microorganisms. In fact, only a small number of microorganisms cause harm to other living organisms. 0.05% of known species, about 583 species Many are useful or essential for human life