Post Quiz (See related pages) 1 In which of the following environments could microorganisms be found? A) Air B) Food C) Skin of a healthy individual D) Water E) All of the above 2 Which inoculating tool should be used when bacterial growth is removed from a solid culture? A) Loop B) Needle 3 Which method is rapid and economical in terms of materials, but requires a certain degree of skill to master the technique. A) Streak-plate method B) Loop dilution (pour plate) method C) Spread-plate method 4 In the neonatal tetanus case study, what was the source of the infection? A) Honey B) Infected wound C) Nursing D) Hospital E) Clay powder 5 After 48 hours of incubation, a student observes a nutrient agar slant that she used to subculture E. coli. The slant contains colonies of bacteria that are off-white and colonies of bacteria that are yellow. What does this information tell her about her subculture of E. coli? A) Her subculture was a pure culture. B) Her subculture was contaminated with Micrococcus luteus. C) Her subculture was contaminated with Serratia marcescens.
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