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The word bacteria is the plural of the Neo-Latin bacterium, which is the romanisation of the Ancient Greek βακτήριον (baktḗrion), [6] the diminutive of βακτηρία (baktēría), meaning "staff, cane", [7] because the first ones to be discovered were rod-shaped. [8] [9]
The German Ferdinand Cohn began studying bacteria in 1870 and is also said to be a founder of bacteriology, as he was the first to classify bacteria into groups based on their cell shapes. He defined bacteria as "chlorophyll-free cells of spherical, oblong, or cylindrical form, sometimes twisted or bent, which multiply exclusively by transverse ...
Also called an antibacterial. A type of antimicrobial drug used in the treatment and prevention of bacterial infections. Archaea One of the three recognized domains of organisms, the other two being Bacteria and Eukaryota. artificial selection Also called selective breeding. The process by which humans use animal breeding and plant breeding to selectively control the development of particular ...
Strong verb may refer to: Germanic strong verb, a verb that marks its past tense by means of changes to the stem vowel; Strong inflection, a system of verb conjugation contrasted with an alternative "weak" system in the same language; Irregular verb, any verb whose conjugation does not follow the typical pattern of the language to which it belongs
Staphylococcus aureus (bacteria) see also chrysos: aureus – aurea – aureum: auritus: L: having (large) ears: brown long-eared bat, Plecotus auritus; double-crested cormorant, Phalacrocorax auritus; long-eared hedgehog, Hemiechinus auritus moon jellyfish, Aurelia aurita yerba santa, Piper auritum; blue eared pheasant, Crossoptilon auritum
Bacteria are prokaryotic microorganisms that can either have a bacilli, spirilli, or cocci shape and measure between 0.5-20 micrometers. They were one of the first living cells to evolve [9] and have spread to inhabit a variety of different habitats including hydrothermal vents, glacial rocks, and other organisms.
[54] [55] [56] One study found that 43% of IBS patients were infected with Blastocystis versus 7% of controls. [49] An additional study found that many IBS patients from whom Blastocystis could not be identified showed a strong antibody reaction to the organism, which is a type of test used to diagnose certain difficult-to-detect infections. [52]
Koch found that he could transmit anthrax from one animal to another by taking a small sample of blood from the infected animal and injecting it into a healthy one, and this caused the healthy animal to become sick. He also found that he could grow the bacteria in a nutrient broth, then inject it into a healthy animal, and cause illness.