d. Because S. marcescens is a (Gram negative or Gram positive?) bacterium, you would suspect that all patients who "had the disease". (were or were not?) easily treated with a commonly-used antibiotic such as amoxycillin. 9. In this simulation, you divided the agar plate into two halves and labeled them "side 1 " and "side 2". a. Each student used a moistened cotton applicator to sample the gloved hand that had physical contact with both the person before them and the person after them. Each student then zigzag inoculated side 1 of the plate with the cotton swab. The purpose of side 1 on each plate was b. The purpose of side 2 on each plate was This is important to demonstrate that 10. Gaps in the class data were possible (whether or not they actually occurred). a. Based on the execution of the simulation, one possible reason for a case showing no S. marcescens growth between cases that exhibited growth is that. b. Explain how in real life, gaps could represent "subclinical infections" or the people could be "asymptomatic carriers":.