News tagged with organisms
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 |
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Economic incentives increase blood donation without negative consequences
Can economic incentives such as gift cards, T-shirts, and time off from work motivate members of the public to increase their donations of blood?
Health
May 23, 2013 |
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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
May 22, 2013 |
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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 |
4.4 / 5 (7) |
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Study suggests new source of kidneys for transplant
Nearly 20 percent of kidneys that are recovered from deceased donors in the U.S. are refused for transplant due to factors ranging from scarring in small blood vessels of the kidney's filtering units to the organ going too ...
Medical research
May 20, 2013 |
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New research identifies risks, interventions for children's GI health
An increasing number of U.S. children are experiencing gastrointestinal issues that require interventions to resolve, according to research presented at Digestive Disease Week (DDW).
Health
May 18, 2013 |
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WHO: Scientific red tape mars efforts vs. virus
International efforts to combat a new pneumonia-like virus that has now killed 22 people are being slowed by unclear rules and competition for the potentially profitable rights to disease samples, the head ...
Diseases, Conditions, Syndromes
May 23, 2013 |
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WHO says 22 deaths worldwide from coronavirus (Update)
World Health Organization officials said Thursday that their probe into the deadly new coronavirus that has now claimed 22 lives is being delayed because of a dispute over the ownership rights to a sample—a claim disputed ...
Diseases, Conditions, Syndromes
May 23, 2013 |
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Researchers develop sperm-sorting design that may aid couples undergoing in vitro fertilization
(Medical Xpress)—According to the World Health Organization, approximately 70 million couples experience infertility worldwide. Current data suggests that nearly one third of infertility disorders are due ...
Medical research
May 23, 2013 |
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More kids getting donor organs, but gaps persist, study finds
(HealthDay)—Over the last decade, the number of American children who die each year awaiting an organ donation dropped by more than half, new research reveals. And increasing numbers of children are receiving ...
Pediatrics
May 22, 2013 |
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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
May 21, 2013 |
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
May 21, 2013 |
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
May 21, 2013 |
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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 |
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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.
