an bacterium requires oxygen for survival / to breathe
gliding_bacterium is not bacterium. snorkel is not breathing_device. oxygen_crisis is oxygen_catastrophe. oxygen_therapy is oxygen. gliding_bacterium is bacterium. oxygen_mask is breathing_device. mesophilic_bacterium is bacterium. aerobic_bacterium is bacterium. snorkel is breathing_device. oxygen is necessity_for_life.