19. Milk was pasteurized and kept at ideal refrigerator temperatures ( 4 7 C ) yet was implicated as the cause of a cluster of Listeria cases at a nursing home. Which curve (above) most likely represents the temperature range of the pathogen? 20. E. coli is inoculated into honey, a low water activity (aw), concentrated sugar solution. Based on your knowledge of osmosis, which of these represents what will happen to the cell? A. B. C. D..