1. In the FTM tubes, what does the pink band indicate?
2. Why is it important to pull the inoculating needle straight out of the FTM tube via the same path you inserted it?
3. How would you explain the presence of bacterial growth in the control FTM tube?
4. Which germicide was most effective in your experiment? Did it work best for all the samples?
5. What was the purpose of the dry filter paper?