A defining and extremely limiting trait of the Roman numeral system is that it lacks a character to designate the number 0. The system also has no way to represent negative or decimal numbers. This all goes back to the fact that Roman numerals were developed primarily to count and keep track of things for commerce. defining and extremely limiting trait of the Roman numeral system is that it lacks a character to designate the number 0. The system also has no way to represent negative or decimal numbers. This all goes back to the fact that Roman numerals were developed primarily to count and keep track of things for commerce.
Francisella tularensis is a common gram negative bacteria that is found throughout the United States, but is most commonly located in the central states (Missouri, Arkansas, Illinois, Oklahoma, Tennesee). This small microbe is the cause of a medical condition diagnosed as rabbit fever (Tularemia).
Salmonella can be found in the digestive tracts of humans and animals, especially reptiles. Salmonella on the skin of reptiles or amphibians can be passed to people who handle the animals. Food and water can also be contaminated with the bacteria if it comes in contact with the feces of infected people or animals.here are two species of Salmonella, Salmonella bongori and Salmonella enterica. Salmonella enterica is further divided into six subspecies and over 2500 serovars.