Engineering
Many greenhouses could become energy neutral by using see-through solar panels to harvest energy—primarily from the wavelengths of light that plants don't use for photosynthesis. Those are the findings of a new modeling ...
Feb 7, 2020
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828
Energy & Green Tech
From 'The Terminator' and 'Blade Runner' to 'The Matrix,' Hollywood has taught us to be wary of artificial intelligence. But rather than sealing our doom on the big screen, algorithms could be the solution to at least one ...
Nov 9, 2020
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589
Energy & Green Tech
Researchers from The Hong Kong Polytechnic University (PolyU) have achieved a breakthrough power-conversion efficiency (PCE) of 19.31% with organic solar cells (OSCs), also known as polymer solar cells. This remarkable binary ...
May 29, 2023
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1457
Internet
On Feb. 11, 2020, the World Health Organization put a name to the mysterious respiratory disease spreading with alarming speed around the globe: COVID-19.
Jul 3, 2020
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427
Engineering
Organic semiconductor materials are promising key technologies for the development of state-of-the-art optoelectronic components and are used in photovoltaics as well as in sensor technology and microelectronics. In order ...
Oct 19, 2023
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59
Robotics
An electric knifefish shimmies in the water for the same reason a dog sniffs or a human glances around a new place—to make sense of their surroundings. For the first time, scientists demonstrate that a wide range of organisms, ...
Oct 26, 2023
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47
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
Business
Remote working can be a blessing. More time with family, less commuting, and meetings from the comfort of your living room. But as millions across the world switch to working from home due to the COVID-19 pandemic, they may ...
Mar 27, 2020
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12
Energy & Green Tech
The European Union reached a deal Thursday to almost double the share of renewables in the 27-nation bloc's energy consumption by 2030 amid efforts to become carbon neutral and ditch Russian fossil fuels.
Mar 30, 2023
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23
Computer Sciences
Machine learning happens a lot like erosion.
May 18, 2022
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175
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
