Colorado Esthetician Written Practice Exam

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What term describes harmless organisms that may perform useful functions?

  1. Nonpathogenic

  2. Pathogenic

  3. Bacilli

  4. Spirilla

The correct answer is: Nonpathogenic

Nonpathogenic organisms are those that do not cause disease and may even have beneficial roles in the body. They can help maintain the balance of microorganisms in the skin and prevent the overgrowth of harmful bacteria. Bacilli and spirilla are types of bacteria, with bacilli being rod-shaped bacteria and spirilla being spiral-shaped bacteria. Pathogenic organisms, on the other hand, are harmful and can cause diseases.

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