Chapter 6 assume that after washing your hands, you leave ten bacterial cells on a new bar of soap. you then decide to do a plate count of the soap after it was left in the soap dish for 24 hours. you dilute 1 g of the soap 1: 10^6and plate it on the heterotrophic plate count agar. after 24 hours of incubation, there are 168 colonies. how many bacteria were on the soap? how did you get there?

After graduating from college with a degree in education, matt found a teaching jobin saudi arabia. he figured that a teaching job in the middle east would be the same as a teaching job in the united states. while there were similarities between american and saudi schools, matt was unprepared for the differences between the two cultures. on the first day, a number of his students arrived later than the class's designated 10 a.m. starting time. later, during a break, he noted that his students seemed to stand closely to each other and to him when they spoke. after class, a confused matt asked the american director of the teaching program about these observations. that's why it's always important to do your homework! the director responded with a laugh. what is the possible explanation that director could gave him?