Engineering
Scientists at the University of Aberdeen have developed one of the most advanced subsea holographic cameras in the world, capable of rapid 3D imaging of marine organisms and microparticles.
Jun 25, 2021
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12
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
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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
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240
Energy & Green Tech
Only 2% of vehicles are electrified to date, but that is projected to reach 30% in 2030. A key toward improving the commercialization of electric vehicles (EVs) is to heighten their gravimetric energy density—measured in ...
Jun 18, 2021
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22
Electronics & Semiconductors
Ultrathin, flexible computer circuits have been an engineering goal for years, but technical hurdles have prevented the degree of miniaturization necessary to achieve high performance. Now, researchers at Stanford University ...
Jun 17, 2021
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120
Energy & Green Tech
An electrode coating just one molecule thick can significantly enhance the performance of an organic photovoltaic cell, KAUST researchers have found. The coating outperforms the leading material currently used for this task ...
Jun 10, 2021
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7
Engineering
Today, solar energy provides 2% of U.S. power. However, by 2050, renewables are predicted to be the most used energy source (surpassing petroleum and other liquids, natural gas, and coal) and solar will overtake wind as the ...
Jun 9, 2021
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23
Security
Criminal gangs divulged plans for moving drug shipments and carrying out killings on a secure messaging system secretly run by the FBI, law enforcement agencies said Tuesday, as they unveiled a global sting operation they ...
Jun 8, 2021
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6
Energy & Green Tech
Washington University researchers have developed a filter that treats wastewater and also generates electricity—an advance that could reshape energy use at treatment plants.
Jun 3, 2021
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11
Business
Zoom is still booming, raising prospects that the video-conferencing service will be able to sustain its momentum, even as the easing pandemic lessens the need for virtual meetings.
Jun 2, 2021
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3
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
