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Assignment 3 –(100 marks)1.Describe the negative feedback loop that controls the rate of erythropoiesis. Under what circumstances would you expect the rate of erythropoiesis to be increased? How would it be possible to tell if the rate of erythropoiesis is elevated? (3 marks)2.Explain the proposed role of hemoglobin in the maintenance of blood pressure. (2marks)3.On a differential white blood cell count, Ezra is found to have 85 percent neutrophils and an elevated number of band cells. What is the most likely cause of