Navigation Links
Microorganism


A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). Microorganisms are often illustrated using single-celled, or unicellular, organisms; however, some unicellular protists are visible to the naked eye, and some multicellular species are microscopic. The study of microorganisms is called microbiology.

Microorganisms may be found almost anywhere in the taxonomic structure. Bacteria and archaea are almost always microscopic. A number of eukaryotes are also microscopic, including most protists and a number of fungi.

Microorganisms are found everywhere in nature. Even in hostile environments, like the poles, deserts, geysers, rocks, and the deep sea , some types of microorganisms have adapted to the extreme conditions and sustained colonies; these organisms are known as extremophiles. Some extremophiles have been known to survive for a prolonged time in a vacuum, and some can be unusually resistant to radiation.

Microorganisms are used in brewing, baking, biotechnology, recycling of other organisms' remains and waste products, and many other processes. They can also be harmful as pathogens when, as parasites, they cause infections.

Microorganisms were probably the first form of life that appeared on Earth. Today they have an important place in all ecosystems and in most higher-order multicellular organisms. For mankind they are important for participating in driving the earth's main element cycles, and for the creation of certain types of food, medical substances and biological weapons.

See also

External links


'"/>


(Date:7/9/2014)... fungal pathogens pose a greater threat to biodiversity ... of amphibians, bats, corals, bees and snakes. New ... in the prestigious journal Nature reveals ... to a deadly chytrid fungus implicated in global ... important because it is the basis of vaccination ...
(Date:7/9/2014)... Guelph scientist that involved fitting bumblebees with tiny ... neonicotinoid pesticide hampers bees, ability to forage for ... professor in Guelph,s School of Environmental Sciences, and ... July 9 in the British Ecological Society,s journal ... how long-term pesticide exposure affects individual bees, day-to-day ...
(Date:7/9/2014)... fever but often can be defeated with antibiotics and ... beat. Now, scientists have built a new weapon against such ... the journal ACS Applied Materials & Interfaces , their ... of them than medicine alone. , David Leong, Jianping Xie ... wait, undetectable in the human body or in places that ...
Breaking Biology News(10 mins):USF study: Amphibians can acquire resistance to deadly fungus 2Bee foraging chronically impaired by pesticide exposure: Study 2
... why a tuberculosis vaccine is not as effective for some ... not work as well for some as they do for ... issue of the Journal of Leukocyte Biology ( ... common environmental bacterium found in soil and water, can decrease ...
... State University have solved a long-standing conundrum about ... way into limestone, sand grains, mussel shells, coral ... According to the lead investigator, ASU professor ... what is "at the heart of an erosive ...
... New Rochelle, NY, November 30, 2010Access to quality reproductive ... aspect of a woman,s human rights, freedom, equity, and ... on Global Women,s Reproductive Health in the current issue ... by Mary Ann Liebert, Inc., explores the compelling medical, ...
Cached Biology News:Blame the environment: Why vaccines may be ineffective for some people 2Mystery dissolves with calcium pump discovery 2Mystery dissolves with calcium pump discovery 3Ensuring the rights of women worldwide to reproductive health care 2
Other biology definitionOther Tags