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Hace 3 días · Biochemistry. Enzymes ( / ˈɛnzaɪmz /) are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Hace 3 días · Iron(II) complexes are less stable than iron(III) complexes but the preference for O-donor ligands is less marked, so that for example [Fe(NH 3) 6] 2+ is known while [Fe(NH 3) 6] 3+ is not. They have a tendency to be oxidized to iron(III) but this can be moderated by low pH and the specific ligands used. Organometallic compounds Iron penta-carbonyl
Hace 1 día · Dodge D series. The Ram pickup (marketed as the Dodge Ram until 2010 when Ram Trucks was spun-off from Dodge) is a full-size pickup truck manufactured by Stellantis North America (formerly Chrysler Group LLC and FCA US LLC) and marketed from 2010 onwards under the Ram Trucks brand. The current fifth-generation Ram debuted at the 2018 North ...
Hace 3 días · Mutation with double bloom in the Langheck Nature Reserve near Nittel, Germany. In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. [1] Viral genomes contain either DNA or RNA.
Hace 2 días · Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world. Irrigation helps to grow crops, maintain landscapes ...
Hace 2 días · Notable deaths. January 10 – Jennell Jaquays, 67, tabletop and video game designer, with contributions for Dungeons & Dragons and at id Software. February 1 – Carl Weathers, 76, actor, best known for portraying Apollo Creed in the Rocky films and providing voice work in Mercenaries: Playground of Destruction, Mortal Kombat X and The Artful Escape.
Hace 3 días · The Roman numerals correspond to some ice phases listed below. The phases of ice are all possible states of matter for water as a solid. Currently, twenty one phases, including both crystalline and amorphous ices, have been observed at various densities.
