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*Cooling | *Cooling | ||
*Inoculate with various surface contaminants | *Inoculate with various surface contaminants | ||
#My saliva | |||
#My fingerprint | |||
#The chalk | |||
#The women toilet | |||
*The first week | *The first week | ||
As described above, the filled Petri dishes become with the bacteria | As described above, the filled Petri dishes become with the bacteria | ||