microorganism
a very small organism that can be seen only with a microscope
Microorganisms are tiny living organisms that can only be seen under a microscope. They include bacteria, viruses, fungi, protozoa, algae, and archaea. These microorganisms are present almost everywhere on earth, and play vital roles in the functioning of various ecosystems.
Some microorganisms are helpful to humans, such as the ones used in the production of food, beverages, and antibiotics. They also play an important role in the nitrogen cycle, decomposition of organic matter, and cleaning up of pollutants.
However, some microorganisms can cause diseases in humans, animals, and plants. Examples of diseases caused by microorganisms include tuberculosis, influenza, typhoid fever, and fungal infections. It is important to understand the nature and characteristics of microorganisms, as this knowledge helps to prevent the spread of diseases, develop new treatments, and improve the quality and safety of food and water.
More Answers:
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Understanding the Various Modes of Infection Transmission and How to Prevent Them