Bacteriologists and microbiologists can use these icons to increase the impact of content about how bacteria are used in biotechnology, types of bacterial infections and their treatment options, etc. Biology tutors can include these icons in their slides to augment the meaning of content about bacteria's basic structure, classification, and functions, including their role in the ecosystem. You can also support information about the importance of bacteria in nutrient cycling, waste decomposition, and maintaining soil and water quality.