Microscopic Organisms – The World of Microbes. – Video

Posted: February 6, 2013 at 2:48 pm

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Video Link: https://www.youtube.com/watch?v=z-i_2gmuqmg



Microscopic Organisms - The World of Microbes.
A microorganism (from the Greek: mu; iota; kappa; rho; #972; sigmaf;, mikrós, "small" and #8000; rho; gamma; alpha; nu; iota; sigma; mu; #972; sigmaf;, organismós, "organism"; also spelled micro-organism, micro organism or microörganism) or microbe is a microscopic organism that comprises either a single cell (unicellular), cell clusters, or multicellular relatively complex organisms. The study of microorganisms is called microbiology, a subject that began with Anton van Leeuwenhoek #39;s discovery of microorganisms in 1675, using a microscope of his own design. Microorganisms are very diverse; they include all of the prokaryotes, namely the bacteria and archaea; and various forms of eukaryote, comprising the protozoa, fungi, algae, microscopic plants (green algae), and animals such as rotifers and planarians. Some microbiologists also classify viruses as microorganisms, but others consider these as nonliving. Most microorganisms are unicellular (single-celled), but this is not universal, since some multicellular organisms are microscopic, while some unicellular protists and bacteria, like Thiomargarita namibiensis, are macroscopic and visible to the naked eye. Microorganisms live in all parts of the biosphere where there is liquid water, including soil, hot springs, on the ocean floor, high in the atmosphere and deep inside rocks within the Earth #39;s crust. Microorganisms are critical to nutrient recycling in ecosystems as they act as decomposers. As some microorganisms can fix nitrogen, they are a vital part of the nitrogen cycle, and recent studies ...

By: shreyan chaubey

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Microscopic Organisms - The World of Microbes. - Video

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