Atmospheric nitrogen made usable by nitrogen-fixing bacteria in legume nodules of plant consumed by the rabbit

Nitrogen fixing bacteria is a type of beneficial bacteria (Cyanobacteria) which has the ability to fix the atmospheric nitrogen into ammonium and nitrates form. This atmospheric nitrogen cannot used by the plants so these bacteria fixes it. This is a symbiotic association between plants and bacteria in which both gets benefit. This nitrogen used by the plants and produces more vegetation cover which is a food source of herbivores such as rabbit.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?