Brief description about Animal groups.
The discovery of the light microscope made it possible to see firsthand the agents of many bacterial, fungal, and protozoan diseases. But the techniques for observing and cultivating these relatively large microorganisms were useless for viruses. For many years, the cause of viral infections such as
smallpox and polio was unknown, even though it was clear that the diseases were transmitted from person to person.
Microbes are deeply involved in the flow of energy and food through the earth’s ecosystems. Most people are aware that plants carry out photosynthesis, which is the light-fueled conversion of carbon dioxide to organic material, accompanied by the formation of oxygen. However, bacteria invented photosynthesis long before first plants appeared, first as a process that did not produce oxygen. This anoxygenic photosynthesis later evolved into oxygenic photosynthesis, which not only produced oxygen but also was much more efficient in extracting energy from sunlight. Hence, bacteria were responsible for changing the atmosphere of the earth from one without oxygen to one with oxygen.
Microbiology is a specialized area of biology that deals with living things ordinarily too small to be seen without magnification. Such microscopic organisms are collectively referred to as microorganisms, microbes, or several other terms depending on the kind of microbe or the purpose. In the context of infection and disease, some people call them germs, viruses, or agents; others even call them “bugs”; but none of these terms are clear. In addition, some of these terms place undue emphasis on the disagreeable reputation of microorganisms.
"Small World" a microscopic photo contest in images.
The job of a microbiologist involves the abstraction of micro animal and their affiliation to the ambiance and diseases. They abstraction micro bacilli like fungi, yeast, protozoa, viruses, bacteria, etc., with the advice of able microscopes.
Isolation of pure cultures of microorganisms is an important activity in Microbiology. This is usually done for the purpose of diagnostic identification. This article explains several methods that can be used to achieve this.