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Question

Name the bacteria whose presence in river water indicates contamination by disease causing microbes.


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Solution

Explanation :

  1. Coliform bacteria are a diverse category of bacteria that can be found in almost any environment.
  2. They can be found in soil and surface water, as well as on your skin.
  3. Various types of coliform bacteria can also be found in large numbers in human and animal waste.
  4. Although most coliform bacteria are safe for humans, a few can cause minor infections and a few can cause catastrophic waterborne illnesses.
  5. Coliform bacteria are known as "indicator organisms" because they can signal the presence of disease-causing bacteria in water.
  6. The presence of coliform bacteria in water does not necessarily mean that consuming it will make you sick. Rather, their presence implies that a bacterium source such as surface water, septic system, animal waste, etc., and the water supply has a contamination pathway.
  7. This mechanism could be used by disease-causing microorganisms to access the water supply.

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