According to a Texas A&M University website, the Mexican flag stands for Mexican values and historical tradition. The three colors of the flag were the colors of the Army of the Three Guarantees,... According to a Texas A&M University website, the Mexican flag stands for Mexican values and historical tradition. The three colors of the flag were the colors of the Army of the Three Guarantees,... Star Gazing
Clostridium tetani is a rod-shaped, anaerobic bacterium of the genus species Clostridium.
This phylogenetic tree represents the three classes, Bacilli, Mollicutes, and Clostridia, of the phylum Firmicutes. Clostridia bacteria lack aerobic respiration and actually generate their ATP via anaerobic fermentation. Clostridia also contain peptidoglycan in their cell walls.