CHAPTER 10

Microbes in Human Welfare

CHAPTER AT A GLANCE

  • Microbes can be found everywhere, spanning environments from soil and water to the atmosphere, both within the bodies of living organisms, such as humans, animals, and plants.
  • They also thrive in extreme conditions where traditional life forms cannot survive, including the scorching depths of geysers with temperatures reaching as high as 100°C, deep within soil, beneath layers of thick snow, and in highly acidic surroundings.
  • Microbes exhibit remarkable diversity, comprising protozoa, bacteria, fungi, microscopic viruses affecting animals and plants, viroids, and prions—proteinaceous infectious agents.
  • Certain microbes, such as bacteria and many fungi, can be cultured on nutrient-rich ...

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