Why may Contamination from Unwanted Microorganism Ruin the Results? How can you Ensure that this Doesn't Happen?

-Contamination will Ruin the Results because it may be Immune, or be Different to what the Antimicrobe is trying to Achieve. 1. Disinfecting the Work Area is Key, like Alcohol [That's Flammable] 2. Sterilise all Equipment and Glassware, like Forceps, Before and After Usage in a Autoclave. Agar Jelly also to be put in Autoclave 3. Inoculating Loop [Wire Loop] Sterilised by putting it through a Hot Flame [Bunsen Burner] 4. Bunsen Burner should be Near the Practical as Microbes in the Air will Rise, because Hot Air Rises, so it won't Interfere with the Practical 5. Flame the Neck of the Container of Bacteria AFTER its Opened and BEFORE its Closed so Unwanted Microbes can't Fall in