Problem: Suppose during a laboratory period you were provided with sterile Petri dishes to expose to the environment in the following ways (inoculation):
Several coins pressed temporarilon the media
Hair combed over exposed petri-dishes
Expose the petri-dish by coughing onto it
Swabbing your skin and inoculating the petri-dish with swab
Discuss what you would expect to observe on the Petri dishes (#1-4) after 48hrs of incubation? Which habitat sampled would you expect to contain more bacteria and why?