When oxygen availability drops, certain cells in the kidney respond by producing erythropoietin, which in turn stimulates an increase in red blood cells. This cellular response represents
A) the clotting mechanism.
B) negative feedback.
C) positive feedback.
D) the all-or-none response.
E) aerobic metabolism.

Question

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The Answer of When oxygen availability drops, certain cells in the kidney respond by producing erythropoietin, which in turn stimulates an increase in red blood cells. This cellular response represents
A) the clotting mechanism.
B) negative feedback.
C) positive feedback.
D) the all-or-none response.
E) aerobic metabolism.

When Oxygen Availability Drops, Certain Cells in the Kidney Respond