More diagnostic media for the advanced student. B08 Bacteria Stains. You must stain bacteria to see them unless using phase contrast microscope. B11 Oxygen requirements of bacteria. Aerobes, anaerobes, facultatives.
Habitats give clues.
B14 Nutritional requirements of bacteria. B15 pH requirements of bacteria. Few can grow in very acidic or very alkaline environments. Traits that make them useful in nature and foods. B22-B29 Detailed study of bacteria genera.