Bacterial/Yeast/Fungi Identification & Microbial Community Analysis Biolog Systems can rapidly identify over 1,900 species of aerobic and anaerobic bacteria, yeasts, and fungi. These easy to use Systems provide reference laboratory quality identifications to any size laboratory. Biolog Systems do this without the labor-intensive requirements of conventional strips or panels. There is a Biolog System for any size laboratory, from fully and semi-automated to manually read systems.