By Sherman Hollar
Describes the actual features of bactera, algae and protozoa, and a few of the scientific and commercial makes use of of bacteria.
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Extra info for A closer look at bacteria, algae, and protozoa
Some 45 A closer look At BActerIA, AlgAe, And ProtozoA Caption TK 46 feAtures And tyPes of AlgAe species live within or on plants and animals. Certain species capable of tolerating temperatures of 176 °F (80 °C) dwell in and around hot springs, and certain other species live in the snow and ice of the Arctic and Antarctic regions. Marine algae, such as the common seaweeds, are most noticeable on rocky coastlines. In northern temperate climes they form an almost continuous film over the rocks. In the tropics they are found on the floors of lagoons, and they are associated with coral reefs and island atolls.
The illness is usually self-limiting, with no evidence of long-lasting effects. However, one dangerous strain causes bloody diarrhea, kidney failure, and death in extreme cases. Proper cooking of meat and washing of produce can prevent infection from contaminated food sources. E. coli also can cause urinary tract infections in women. Colorized scanning electron micrograph showing a number of Escherichia coli bacteria. Janice Haney Carr/CDC 31 A closer look At BActerIA, AlgAe, And ProtozoA Vaccines, Antitoxins, and Antibiotics Vaccines can be produced that protect humans and animals from infections by certain pathogenic bacteria and their toxins.
42 the ImPortAnce, dAngers, And uses of BActerIA Louis Pasteur and the Germ Theory In 1854 French chemist and microbiologist Louis Pasteur became professor of chemistry and dean of the school of science (Faculté des Sciences) at the University of Lille. Hearing of Pasteur’s scientific ability, a local distiller came to him for help in controlling the process of making alcohol by fermenting beet sugar. Pasteur saw that fermentation was not a simple chemical reaction but took place only in the presence of living organisms.
A closer look at bacteria, algae, and protozoa by Sherman Hollar