News tagged with living organisms
Tiny worm sheds light on giant mystery about neurons
Scientists have identified a gene that keeps our nerve fibers from clogging up. Researchers in Ken Miller's laboratory at the Oklahoma Medical Research Foundation (OMRF) found that the unc-16 gene of the roundworm Caenorhabditis el ...
Genetics
Apr 30, 2013 |
not rated yet |
0
Malaria parasite protein identified as potential new target for drug treatment
Scientists have discovered how a protein within the malaria parasite is essential to its survival as it develops inside a mosquito. They believe their findings identify this protein as a potential new target for drug treatments ...
Medical research
Apr 25, 2013 |
not rated yet |
0
|
No proof China's H7N9 spreading between humans, WHO says
The World Health Organisation said Monday there is no evidence China's new H7N9 strain of bird flu is spreading between humans, as the death toll rose to seven and airline and tourism shares slumped.
Diseases, Conditions, Syndromes
Apr 08, 2013 |
5 / 5 (1) |
0
China steps up response to bird flu cases (Update)
Cities in eastern China where an H7N9 bird flu outbreak has killed six people moved Saturday to prevent the virus from spreading by banning live poultry trade and culling fowl.
Diseases, Conditions, Syndromes
Apr 06, 2013 |
5 / 5 (1) |
0
Surprising findings in mitochondrial biology change long-standing ideas on the protein MTERF1
New findings in mitochondrial biology thoroughly change the idea scientists had for 20 years on the role and importance of the protein MTERF1. For the first time, Max Planck researcher Mügen Terzioglu and her colleagues ...
Medical research
Apr 02, 2013 |
4 / 5 (1) |
0
|
New lung cancer study takes page from Google's playbook
A new study shows that the same sort of mathematical model that Google uses to predict which websites people want to visit may help researchers predict how lung cancer spreads through the human body.
Cancer
Mar 25, 2013 |
not rated yet |
0
|
Mutated gene causes nerve cell death
Researchers identify new mechanism in the onset of incurable nerve disease The British astrophysicist Stephen Hawking is likely to be the world's most famous person living with amyotrophic lateral sclerosis ...
Medical research
Mar 13, 2013 |
5 / 5 (3) |
0
Inherited retinal disease research may lead to treatment
Inherited retinal disease is a major cause of vision impairment in early life - and a researcher at The University of Western Australia hopes a study in which he was involved will contribute towards the development ...
Medical research
Jan 08, 2013 |
5 / 5 (1) |
0
Specific protein essential for healthy eyes, study finds
Researchers at the Hebrew University of Jerusalem, in collaboration with researchers at the Salk Institute in California, have found for the first time that a specific protein is essential not only for maintaining a healthy ...
Neuroscience
Jan 07, 2013 |
5 / 5 (1) |
0
Global rates of infertility remain unchanged over past two decades
In 2010, almost 50 million couples worldwide were unable to have a child after five years of trying. Infertility rates have hardly changed over the past 20 years, according to a study by international researchers published ...
Obstetrics & gynaecology
Dec 18, 2012 |
not rated yet |
0
More than 3,000 epigenetic switches control daily liver cycles
(Medical Xpress)—When it's dark, and we start to fall asleep, most of us think we're tired because our bodies need rest. Yet circadian rhythms affect our bodies not just on a global scale, but at the level ...
Genetics
Dec 11, 2012 |
4.8 / 5 (5) |
0
|
How our nerves regulate insulin secretion
Researchers at Karolinska Institutet in Sweden have managed to graft beta cells into the eyes of mice in order to study them in a living organism over a prolonged period of time. As a result, the group and a team of colleagues ...
Medical research
Dec 10, 2012 |
5 / 5 (1) |
0
|
Overestimation of abortion deaths in Mexico hinders maternal mortality reduction efforts
A collaborative study conducted in Mexico by researchers of the University of West Virginia-Charleston (USA), Universidad Popular Autónoma del Estado de Puebla (Mexico), Universidad de Chile and the Institute of Molecular ...
Obstetrics & gynaecology
Dec 06, 2012 |
not rated yet |
0
Lung imaging research gets its second wind
Computational fluid dynamics (CFD) provides a quantitative basis for predicting the pulmonary airflow patterns that carry inhaled materials inside the body. This is not only potentially useful for establishing safer exposure ...
Medical research
Sep 26, 2012 |
5 / 5 (1) |
0
Genetically-engineered preclinical models predict pharmacodynamic response
New cancer drugs must be thoroughly tested in preclinical models, often in mice, before they can be offered to cancer patients for the first time in phase I clinical trials. Key components of this process include pharmacokinetic ...
Cancer
Sep 19, 2012 |
not rated yet |
0
|
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.
