“Guesswork plays a part in these estimates. Bacteria exist 40 miles above the Earth and 7 miles deep in the ocean, and… — Anne E. Maczulak Bacteria Copy Share Image
“The pH rises in the intestines and bacterial numbers increase a millionfold from about 1,000 cells per gram of stomach contents, which… — Anne E. Maczulak Happiness Copy Share Image
“Skin bacteria in these places degrade the sweat’s sebaceous oils to a mixture of small fatty acids and nitrogen- and sulfur-containing compounds,… — Anne E. Maczulak Body odor Copy Share Image
“commented on the future of antibiotic drugs. Perhaps, Fleming mused, a time would come when anyone with real or perceived illness could… — Anne E. Maczulak Penicillin Copy Share Image
“that a given bacterial species caused a specific disease. In 1876, Koch established a set of criteria that a bacterium must meet… — Anne E. Maczulak Koch Copy Share Image
“around, some microbiologists have suggested that classifying bacteria by species is futile. It seems as if all bacteria belong to one mega-species,… — Anne E. Maczulak Copy Share Image
“Pasteur had received an honorary degree from the University of Bonn in 1868, but returned it later during the height of French-German… — Anne E. Maczulak Pasteur Copy Share Image
“During a rabies scare in 1885, Pasteur concocted a treatment and gave the untested drug to a nine-year-old boy, Joseph Meister, who… — Anne E. Maczulak Grown man Copy Share Image
“the stars visible from Earth have been estimated at “only” 7 × 1022. The mass of these cells approaches 2 × 1015… — Anne E. Maczulak Earth Copy Share Image
“The enzyme lysozyme in tears and saliva kills bacteria, and skin oils contain fatty acids that inhibit gram-positive bacteria. If those defenses… — Anne E. Maczulak Immune system Copy Share Image
“Communities contain a messaging system in which identical cells or unrelated cells respond to each other and change their behavior. This adaptation… — Anne E. Maczulak Habits Copy Share Image
“Pasteur noticed that a drop of liquid from the fermentation flasks gave a curious result in the microscope. When Pasteur put a… — Anne E. Maczulak Pasteur Copy Share Image
“The skin holds habitats that vary in moisture, oils, salts, and aeration. The scalp, face, chest and back, limbs, underarms, genitals, and… — Anne E. Maczulak Life Copy Share Image
“York from a Dutch neighbor who had immigrated from Java.” People living in the warm East Indian climate noticed that birds gathered… — Anne E. Maczulak Bacteria Copy Share Image
“Venter concluded from a two-year study of marine microbes that for every 200 miles of ocean, 85 percent of the species, judged… — Anne E. Maczulak Education Copy Share Image
“(Courtesy of BioVir Laboratories, Inc.) Three years after Koch and Hesse switched to agar-based media, another assistant in the laboratory, Richard J.… — Anne E. Maczulak Bacteria Copy Share Image
“Koch’s postulates here: The same pathogen must be present in every case of a disease. The pathogen must be isolated from the… — Anne E. Maczulak Koch Postulates Copy Share Image
“No one knows the number of bacterial species. About 5,000 species have been characterized and another 10,000 have been partially identified. Biodiversity… — Anne E. Maczulak Bacteria Copy Share Image
