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Gross Colony Characteristics Used to Differentiate and Identify Presumptively Microorganisms

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Microbiologist can easily identify or guess an isolate by observing the colony characteristics of the organisms that have been isolated. The descriptions that follow are commonly used to investigate colony characteristics. Many of the colony characteristics listed below may differ between species and strains of the same genus. Hemolysis On sheep blood agar , hemolysis observed in the medium immediately surrounding or underneath the colony is caused by bacterial enzymatic or toxin activity. Hemolysis (e.g. α, β, or no hemolysis with other colony characteristics) on sheep blood agar aids in presumptive identification, particularly of streptococci and enterococci. It is critical to decide whether true hemolysis is present or whether the discoloration of the medium is due to the organism’s growth on the plate. To visualize the hemolytic pattern, the colony is often removed with a loop. To decide if the organism is hemolytic, proper technique necessitates the passage of bright light thr...

The San Religion: Beliefs And Rituals

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The San are said to be the oldest people of the Southern Africa. The San have lived in the Southern Africa for roughly 20 000 years. The word San is mostly directed to various set of hunters inhabitantating the Southern parts of Africa sharing historica and same spoken language connections. The San can also be called Bushmen if only the word BUSHMEN has not been rejected as it is seen as abusive and pejorative. The San Beliefs The San believe in a supreme god, a more powerful god but at the same time they acknowledge other small or lesser also having their wives and children acknowledge it. One other belief of the San is paying Homage to the spirits of the natives that have lost their lives. Some San(Bushmen) believe that tilling the soil is against the order of the world set up by their gods. Some of The San also regard the moon with great devotion. The San believe in a said to be most important spiritual known as Kaggen, th...