Energy & Green Tech
With the rise in renewable energy as well as increasing uncertainty associated with outages due to power surges and extreme weather events, energy storage plays a key role in ensuring reliable power supply to critical infrastructure ...
May 11, 2022
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254
Engineering
Milling rice to separate the grain from the husks produces about 100 million tons of rice husk waste globally each year. Scientists searching for a scalable method to fabricate quantum dots have developed a way to recycle ...
Apr 12, 2022
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665
Engineering
Even today, clean water is a privilege for many people around the world. According to the World Health Organization (WHO), at least 1.8 billion people consume water contaminated with feces, and by 2040, a large portion of ...
Apr 7, 2022
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93
Energy & Green Tech
The intermittent supply of green electricity requires large-scale storage to keep our power grids stable. Since normal batteries do not scale very well, the idea of using flow batteries, which store electricity in a fluid ...
Mar 16, 2022
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760
Energy & Green Tech
A team of chemists at the University of Maryland has developed a next-generation aqueous electrolyte to reduce reliance on organic lithium-ion batteries. In their paper published in the journal Nature Energy, the group describes ...
Electronics & Semiconductors
Researchers from the University of Calgary (UCalgary), with help from colleagues at the University of Saskatchewan (USask), are one step closer to creating solar electronics that are flexible, powerful, and better for the ...
Mar 8, 2022
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89
Engineering
A nanomaterials-engineered penetrating sealer developed by Washington State University researchers is able to better protect concrete from moisture and salt—the two most damaging factors in crumbling concrete infrastructure ...
Feb 16, 2022
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651
Energy & Green Tech
Sea pineapples, an edible ascidian, are a delicacy in Japan. The Tohoku region is famed for its sea pineapple production—known as hoya in Japanese. Now, a research group has established a new use for the scores of sea pineapple ...
Feb 9, 2022
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114
Robotics
Science fiction novelists couldn't have come up with a crazier plot: microrobots streaming through blood or through other body fluids that are driven by light, can carry drugs to cancer cells and drop off the medication on ...
Feb 2, 2022
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63
Energy & Green Tech
A team of researchers from the National University of Singapore (NUS) has set a new record in the power conversion efficiency of solar cells made using perovskite and organic materials. This technological breakthrough paves ...
Jan 21, 2022
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484
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
