A 60-year-old male presents to his primary care provider reporting intermittent chest pain, often with exertion. He is diagnosed with atherosclerosis. The management of this disease will include:

A good and healthy food, exercise, medications and loss of weight.

Explanation: A healthy diet and exercise can help a diagnosed patient. Treatments such as medications or procedures to clean up blocked arteries.

Quit smoking because smoking destroys the arteries. Exercise more during the week because exercise can keep the condition of the muscles to use oxygen more efficiently and effectively.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.