Topic Content:
- MicroorganismsMicrobes are organisms that are too small to be seen without using a microscope. They include organisms like bacteria, archaea, and single-cell eukaryotes (organisms whose cells have a nucleus e.g. amoeba... More in Air
- Microorganisms in Water
- Soil Microorganisms
- Sewage Microorganisms
- Microorganisms in Our Bodies and Food
- Carriers of Microorganisms – Vectors
- Economic Importance of Microorganisms
Microorganisms are minute living organisms that are not visible to the naked eye but can be seen with the aid of a microscope.
Microorganisms include:
Microorganisms are found almost everywhere in nature. They are found in air, water, surfaces of objects, and living organisms, within living organisms where they are able to invade living cells.
Many microorganisms are disease-causing agents known as pathogens, while some are especially beneficial to man.
a. Microorganisms in Air:
Microorganisms occur in dust and water droplets. They produce spores that are light and can be readily dispersed by air. They germinate when they land on a suitable substrate. They then multiply and produce more spores.
Common microorganisms found in the air are:
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