Engineering
Wastewater from biorefineries that convert plants into fuel is full of organic materials that cannot be efficiently treated with conventional wastewater systems, making it costly and energy-intensive to manage.
Mar 24, 2023
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55
Engineering
Rare earth elements (REE), a group of 17 metallic elements, are in nearly every piece of technology, including cell phones, televisions, computers and almost every part of a vehicle. The demand for these elements increases ...
Mar 24, 2023
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69
Robotics
Robots can be useful as mental well-being coaches in the workplace—but perception of their effectiveness depends in large part on what the robot looks like.
Mar 14, 2023
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84
Engineering
As countries around the globe seek sustainable energy sources and the U.S. endeavors to become a net-zero emissions economy by 2050, renewable energy sources such as solar panels are in high demand.
Mar 6, 2023
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79
Engineering
A new catalyst design created by researchers at the University of Toronto's Faculty of Applied Science & Engineering could significantly improve the practicality of an electrochemical process that converts captured carbon ...
Jan 23, 2023
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37
Robotics
A team of researchers from Toronto General Hospital Research Institute, Unither Bioelectronics Inc., and Techna, University Health Network, has demonstrated the feasibility of using drones to carry human organs for transplantation ...
Energy & Green Tech
Organic solar cells could be made even greener by switching the solvents used in their manufacture. Today's toxic chlorinated solvents can be replaced by plant-derived alternatives without affecting the resulting solar cells' ...
Dec 15, 2022
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71
Electronics & Semiconductors
New materials that can both harvest and emit light offer exciting potential for technologies that range from solar cells to TV and display screens. In a new study, researchers have developed a new way of enhancing the stability ...
Dec 13, 2022
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82
Robotics
Amoebae are single-cell organisms. By means of self-organization, they can form complex structures—and do this purely through local interactions: If they have a lot of food, they disperse evenly through a culture medium. ...
Nov 22, 2022
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77
Energy & Green Tech
Acceptor layers made of oligomers can increase the performance of organic solar cells and ensure a long operating life at the same time. This is the result of a series of complex laboratory experiments conducted by materials ...
Nov 21, 2022
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31
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
