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Shkiper50 [21]
3 years ago
13

What's on our skin that prevents bacteria and viruses from entering?

Biology
1 answer:
USPshnik [31]3 years ago
7 0

Answer:

The skin itself acts as a barrier between pathogens and your body.

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Water quality is checked by enumerating the number of coliform bacteria by serial dilution method. In food, bacteria that cause foodborne illnesses are enumerated by using the enumeration method.

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