In Exercise 2-1:Ubiquity of Microorganism, we used two unopened plates as controls: one was incubated at 25° C and one was incubated at 37° C. What information do you get from these controls to give...

In Exercise 2-1:Ubiquity of Microorganism, we used two unopened plates as controls: one was incubated at 25° C and one was incubated at 37° C.

1. What information do you get from these controls to give you confidence in your results?


2. How does growth on an unopened plate affect the reliability of the other plates that were inoculated in this experiment?