Business

Google hit with 250-mn-euro French fine in news copyright fight

French regulators said Wednesday they were fining Google 250 million euros ($272 million) for breaching commitments on paying media companies for reproducing their content online and for using their material for its AI chatbot ...

Energy & Green Tech

Review examines improvements in organic solar cell stability

The development of renewable and clean energy has been recognized as a crucial solution to the problems of deteriorating environment. Owing to the advantages of light weight, transparency, flexibility, and low cost, organic ...

Robotics

Q&A: 'Killer robots' are coming, and UN is worried

Long the stuff of science fiction, autonomous weapons systems, known as "killer robots," are poised to become a reality, thanks to the rapid development of artificial intelligence.

Consumer & Gadgets

Women's health on show, a little, at CES

Among the more than 3,500 booths at the Consumer Electronics Show (CES) in Las Vegas, only a few focus exclusively on women's health, including a cervical cancer screening device and a wristband to anticipate hot flushes.

Energy & Green Tech

New report updates NASA on space-based solar power

Space-based solar power offers tantalizing possibilities for sustainable energy—in the future, orbital collection systems could harvest energy in space, and beam it wirelessly back to Earth. These systems could serve remote ...

page 24 from 40

Organism

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