Men typically wore a toga, and women a stola. The woman's stola differed in looks from a toga, and was usually brightly coloured. The cloth and the dress distinguished one class of people from the other class. The tunic worn by plebeians, or common people, like shepherds and slaves, was made from coarse and dark material, whereas the tunic worn by patricians was of linen or white wool. A knight or magistrate would wear an augusticlavus, a tunic bearing small purple studs. Senators wore tunics with broad red stripes, called tunica laticlavia. Military tunics were shorter than the ones worn by civilians. Boys, up until the festival of Liberalia, wore the toga praetexta, which was a toga with a crimson or purple border. The toga virilis, (or toga pura) was worn by men over the age of 16 to signify their citizenship in Rome. The toga picta was worn by triumphant generals and had embroidery of their skill on the battlefield. The toga pulla was worn when in mourning.[citation needed]
What garment was worn by male gendered adults to convey their status as a citizen of Rome?
toga virilis

Bacteria are further divided into lithotrophs that use inorganic electron donors and organotrophs that use organic compounds as electron donors. Chemotrophic organisms use the respective electron donors for energy conservation (by aerobic/anaerobic respiration or fermentation) and biosynthetic reactions (e.g., carbon dioxide fixation), whereas phototrophic organisms use them only for biosynthetic purposes. Respiratory organisms use chemical compounds as a source of energy by taking electrons from the reduced substrate and transferring them to a terminal electron acceptor in a redox reaction. This reaction releases energy that can be used to synthesise ATP and drive metabolism. In aerobic organisms, oxygen is used as the electron acceptor. In anaerobic organisms other inorganic compounds, such as nitrate, sulfate or carbon dioxide are used as electron acceptors. This leads to the ecologically important processes of denitrification, sulfate reduction, and acetogenesis, respectively.
In what organisms is oxygen used as eelectron acceptor?
anaerobic organisms

During the first half of the 1920s, engineers at Western Electric, as well as independent inventors such as Orlando Marsh, developed technology for capturing sound with a microphone, amplifying it with vacuum tubes, then using the amplified signal to drive an electromagnetic recording head. Western Electric's innovations resulted in a greatly expanded and more even frequency response, creating a dramatically fuller, clearer and more natural-sounding recording. Distant or less strong sounds that were impossible to record by the old methods could now be captured. Volume was now limited only by the groove spacing on the record and the limitations of the intended playback device. Victor and Columbia licensed the new electrical system from Western Electric and began issuing electrically recorded discs in 1925. The first classical recording was of Chopin impromptus and Schubert's Litanei by Alfred Cortot for Victor.
What was new about the way Western Electrics method of capturing sound?
microphone