Which of the following procedures is an appropriate negative control for testing the hypothesis that air contains bread mold spores? A. Seal slices of bread in a container to minimize air contact.
B. Place slices of bread in a refrigerated environment.
C. Add ingredients to the bread recipe that will slow mold growth.
D. Expose a different mold-supporting medium to air.
I nedd help!!!
1 answer
If you do A and the bread gets moldy with no air, then the mold spores probably did not come from the air.
1 answer