Texas Barber Exam Practice Test

Bacteria can be found in a variety of environments, including the options of skin, in water, and decayed matter. While bacteria can certainly be found in these places, they are not necessarily exclusive to them. In fact, bacteria can be found in many places such as in the air, soil, and even inside the human body. However, the only option that refers to a source of bodily secretions, such as saliva or sweat, is option D. Therefore, this option is the most accurate answer to the question.