For 2125, suppose x and y are the populations of two different species. Describe in

Chapter 9, Problem 25

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For 2125, suppose x and y are the populations of two different species. Describe in words how each population changes with time.A kidney removes toxin fromthe blood. If a kidney does not function, the toxin can be removed by dialysis. This problem explores a model for Q1(t), the quantity of toxin in the body outside the blood, and Q2(t), the quantity of toxin in the blood, where t is the time after dialysis started. (a) The quantity Q1 changes for three reasons. First, toxin is created outside the blood at a constant rate, say A. Second, toxin flows into the blood at a rate proportional to the quantity outside the blood. Third, toxin flows out of the blood at a rate proportional to the quantity in the blood. Write a differential equation for Q1. (b) The quantity Q2 changes for three reasons. First, dialysis removes toxin from the blood at a rate proportional to the toxin in the blood. Second and third, the same flows into and out of the blood that change Q1 also change Q2. Write a differential equation for Q2. .