Which of the following might trigger erythropoiesis? a. moving to a lower altitude b. an increased number of RBCs c. hypoxia of EPO-producing cells d. decreased tissue demand for oxygen

answer; ///as energy flows through an ecosystem,energy (decreases) at each

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.