RESULTS
I collected my data by taking the pictures shown below. The first set of images was after 48 hours and the second set was after 96. After collecting my data, I put the petri dishes in order from least amount of bacteria to most. The following video shows you the bacteria up close.

Here are some of my conclusions:
*I thought the cat's mouth would be the overall cleanest, but the human mouth was.
*Over all, the cat was the cleanest organism.
*The petri dishes smelled really bad after the bacteria formed.
*The human hand hand grew mold in the petri dish.