News tagged with organisms
Research offers promising new approach to treatment of lung cancer
Researchers have developed a new drug delivery system that allows inhalation of chemotherapeutic drugs to help treat lung cancer, and in laboratory and animal tests it appears to reduce the systemic damage ...
Cancer
2 hours ago |
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Small increase in cancer risk following CT scans in childhood and adolescence
Study leader, Professor John Mathews from the University of Melbourne said this small increase in cancer risk must be weighed against the undoubted benefits from CT scans in diagnosing and monitoring disease.
Cancer
6 hours ago |
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New blood-thinner measures may cut medication errors
Blood thinners are the preferred treatment option to prevent heart attacks, blood clots and stroke, but they are not without risk, and not just because of their side effects. These high-risk drugs, known as anticoagulants, ...
Cardiology
6 hours ago |
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Dietary advice on added sugar is damaging our health, warns heart expert
Dietary advice on added sugar is damaging our health, warns a cardiologist in BMJ today. Dr. Aseem Malhotra believes that "not only has this advice been manipulated by the food industry for profit but it is actually a risk ...
Health
21 hours ago |
4.8 / 5 (5) |
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Changing cancer's environment to halt its spread
By studying the roles two proteins, thrombospondin-1 and prosaposin, play in discouraging cancer metastasis, a trans-Atlantic research team has identified a five-amino acid fragment of prosaposin that significantly reduces ...
Cancer
22 hours ago |
5 / 5 (1) |
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Global recommendations on child medicine
Transparent information on the evidence supporting global recommendations on paediatric medicines should be easily accessible in order to help policy makers decides on what drugs to include in their national drug lists, according ...
Medications
23 hours ago |
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B vitamins could delay dementia
(Medical Xpress)—Despite spending billions of dollars on research and development, drug companies have been unable to come up with effective treatments for dementia and Alzheimer's Disease (AD). Now, A. ...
Neuroscience
May 21, 2013 |
4.9 / 5 (16) |
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Study finds vitamin C can kill drug-resistant TB (w/ video)
In a striking, unexpected discovery, researchers at Albert Einstein College of Medicine of Yeshiva University have determined that vitamin C kills drug-resistant tuberculosis (TB) bacteria in laboratory culture. The finding ...
Diseases, Conditions, Syndromes
May 21, 2013 |
4.3 / 5 (6) |
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World not ready for mass flu outbreak, WHO says
The world is unprepared for a massive virus outbreak, the deputy chief of the World Health Organization warned Tuesday, amid fears that H7N9 bird flu striking China could morph into a form that spreads easily among people.
Diseases, Conditions, Syndromes
May 21, 2013 |
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New tumour-killer shows great promise in suppressing cancers
Scientists from Nanyang Technological University (NTU) and Lund University, Sweden, have bioengineered a novel molecule which has been proven to successfully kill tumour cells.
Cancer
May 21, 2013 |
5 / 5 (3) |
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Salt consumption in India: The need for data to initiate population-based prevention efforts
(Medical Xpress)—International researchers are studying the salt intake of Indian adults to provide vital new data to aid the development of a national salt reduction strategy.
Health
May 21, 2013 |
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No new H7N9 cases in China for a week
No new human cases of the H7N9 virus have been recorded in China for a week, national health authorities said, for the first time since the outbreak began in March.
Diseases, Conditions, Syndromes
May 21, 2013 |
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Organism
In biology, an organism is any living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many billions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The terms "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with life on Earth. Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria. Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.
For more information about Organism, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
