Back pain can also result from more-serious injuries, such as a vertebral fracture or ruptured disk; from arthritis and other age-related changes in your spine; and from certain infections. Possible causes of back pain include: Ankylosing spondylitis.
Microbiological culture. A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture media under controlled laboratory conditions. Microbial cultures are used to determine the type of organism, its abundance in the sample being tested, or both.
Microbiological contaminants are best described as: A. unwanted microbes present on or in a substance B. any and all microbes present on or in a substance C. pathogenic microbes present on or in a substance D. vegetative microbes present on or in a substance E. none of the choices are correct. A.