News tagged with living organisms
(Medical Xpress) -- Expanding on previous research providing proof-of-principal that human stem cells can be genetically engineered into HIV-fighting cells, a team of UCLA researchers have now demonstrated ...
HIV & AIDS Apr 12, 2012 | 4.8 / 5 (64) | 0 |
Researchers from UCLA's cancer and stem cell centers have demonstrated for the first time that blood stem cells can be engineered to create cancer-killing T-cells that seek out and attack a human melanoma. The researchers ...
Cancer Nov 28, 2011 | 5 / 5 (4) | 1 |
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 |
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
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 |
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 |
(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 |
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 |
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 |
In the largest study of its kind, living donors who had a kidney removed through a single port in the navel report higher satisfaction in several key categories, compared to donors who underwent traditional multiple-port ...
Surgery Sep 12, 2012 | 5 / 5 (1) | 0 |
Van Andel Institute announces that researchers at Lund University in Sweden have published a study detailing how Parkinson's disease spreads through the brain. Experiments in rat models uncover a process previously used to ...
Parkinson's & Movement disorders Jun 27, 2012 | not rated yet | 0 |
A Duke University-led study of North Carolina toddlers suggests that exposure to potentially toxic flame-retardant chemicals may be higher in nonwhite toddlers than in white toddlers.
Health May 23, 2012 | not rated yet | 0 |
Fibronectin plays a major role in wound healing and embryonic development. The protein, which is located in the extracellular matrix of cells, has also been linked to pathological conditions including cancer ...
Medical research Apr 24, 2012 | 5 / 5 (1) | 0 |
One of the greatest mysterious in cellular biology has been given a new twist thanks to findings reported in Science. Researchers at the RIKEN Brain Science Institute show that prions, proteins that transm ...
Medical research Apr 23, 2012 | 5 / 5 (1) | 0 |
(Medical Xpress) -- Scientists at the University of Sussex have uncovered the mechanism of a key process in DNA repair that helps prevent neurodegenerative diseases such as ataxia.
Medical research Mar 14, 2012 | 5 / 5 (1) | 0 |
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
This text uses material from Wikipedia and is available under the GNU Free Documentation License.