The third image. The ball bounces back up after hitting the force of the floor
It can contaminate the air causing people that breath it in to become sick.
Ans.
Escherichia coli is a facultative anaerobic, gram-positive bacterium that can survive in absence or presence of oxygen. When oxygen is available in its surrounding, it shows respiration, in which complete breakdown of glucose takes place to produce energy. However, in the absence of oxygen, it shows fermentation for energy generation.
Hence, the correct answer is 'option d). in aerobic conditions, it will show respiration, and in anaerobic conditions, it will show fermentation.'
