Answer:
See the answer below
Explanation:
A good control set up to test whether spontaneous generation can occur in a piece of bread would be to first sterilize the bread in order to ensure that is free from any microbe and then place it in a covered sterile container. The alternate set-up would be to sterilize the bread and then place it in an uncovered sterilized container. Both set-ups will then be observed for a few days for the growth of fungi.
