Computer Sciences
A computer analysis of hundreds of thousands of secure email messages between doctors and patients found that most doctors use language that is too complex for their patients to understand. The study also uncovered strategies ...
Dec 17, 2021
0
314
Engineering
Alberta's world renown in carbon capture and sequestration is set to receive another lift thanks to the promise of a material invented and tested in the province that offers an efficient way to pull carbon dioxide out of ...
Dec 17, 2021
1
119
Robotics
Psychologists use mazes to assess the learning capacity of mice or rats. But how about robots? Can they learn to navigate the twists and turns of a labyrinth? Now, researchers at the Eindhoven University of Technology (TU/e) ...
Dec 13, 2021
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80
Energy & Green Tech
Zero emissions and, soon, zero crew: the world's first fully electric autonomous cargo vessel was unveiled in Norway, a small but promising step toward reducing the maritime industry's climate footprint.
Nov 19, 2021
4
18931
Engineering
Researchers have identified a key mechanism responsible for the lower efficiencies of organic solar cells and shown a way that this hurdle might be overcome.
Sep 29, 2021
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200
Robotics
Mantis shrimp pack the strongest punch of any creature in the animal kingdom. Their club-like appendages accelerate faster than a bullet out of a gun and just one strike can knock the arm off a crab or break through a snail ...
Aug 25, 2021
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354
Computer Sciences
Skoltech researchers and their colleagues from Lomonosov Moscow State University and the Syntelly start-up have developed and trained a neural network to generate names for organic compounds in accordance with the IUPAC nomenclature ...
Jul 28, 2021
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448
Security
An Israeli firm accused of supplying spyware to governments has been linked to a list of tens of thousands of smartphone numbers, including those of activists, journalists, business executives and politicians around the world, ...
Jul 18, 2021
0
34
Engineering
Rice University engineers have created microscopic seeds for growing remarkably uniform 2D perovskite crystals that are both stable and highly efficient at harvesting electricity from sunlight.
Jun 21, 2021
1
25
Electronics & Semiconductors
Engineers at Tufts University have developed new methods to more efficiently fabricate materials that behave in unusual ways when interacting with microwave energy, with potential implications for telecommunications, GPS, ...
Jun 21, 2021
0
240
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.
This text uses material from Wikipedia, licensed under CC BY-SA
