Questions: When testing water supplies for safety, it is important to differentiate between coliforms that can be naturally found in soils and uncontaminated waters and coliforms that live mainly in human and animal intestines.

When testing water supplies for safety, it is important to differentiate between coliforms that can be naturally found in soils and uncontaminated waters and coliforms that live mainly in human and animal intestines.

Transcript text: Fill in the Blank Question When testing water supplies for safety, it is important to differentiate between coliforms that can be naturally found in soils and uncontaminated waters and $\square$ coliforms that live mainly in human and animal intestines.

Solution

The answer is: fecal

Explanation: When testing water supplies for safety, it is important to differentiate between coliforms that can be naturally found in soils and uncontaminated waters and fecal coliforms that live mainly in human and animal intestines.

Summary: The blank should be filled with the word "fecal" to correctly complete the sentence. This distinction is crucial because fecal coliforms indicate potential contamination by human or animal waste, which can pose significant health risks.

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