Allison is trying to identify the type of bacteria found on common surfaces like doorknobs, table tops, etc. for this experiment, she will collect samples of bacteria and allow them to grow for several days. then, she will observe the bacterial colonies that are formed and compare their appearance with pictures of bacterial colonies in her textbook. which of the following pieces of equipment will allison most likely use for the growth of the bacteria? a. microscope b. graduated cylinder c. barometer d. petri dish