Definition of “microorganisms” by Spec Services: Microorganisms, often referred to as microbes, are microscopic organisms that are too small to be seen with the naked eye. They include a wide variety of life forms such as bacteria, viruses, fungi, archaea, and protozoa. Microorganisms are found virtually everywhere on Earth, including in soil, water, air, and even within the human body. While some microorganisms are harmful and can cause diseases or contamination, others are beneficial and play essential roles in processes like decomposition, fermentation, and nutrient cycling. In cleaning and sanitation, controlling harmful microorganisms is a key focus to ensure hygiene and prevent the spread of infections.
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