the stimulation of marrow to reduce the amount of erythrocytes produced
increasing the rate at which erythrocytes are destroyed
the stimulation of marrow to produce more erythrocytes
increasing the break down of the protein portion of the erythrocytes
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Myschool you guys should correct this please! The answer is C and I will prove it to you. Do you know world class marathon runners train at very high altitudes? Where there is low oxygen. To compensate for the decrease in oxygen, one of the body's hormones, erythropoietin (EPO), triggers the production of more red blood cells to aid in oxygen delivery to the muscles.
By training at high altitudes, athletes aim to allow their bodies to produce extra red blood cells.
The rate of erythropoiesis is sensitive to the oxygen tension of the arterial blood. When oxygen tension falls, more red cells are produced and the red cell count rises. For this reason, persons who live at high altitude have higher red cell counts than those who live at sea level. For example, there is a small but significant difference between average red cell counts of persons living in New York City, at sea level pressure, and persons living in Denver, Colo., more than 1.5 km (1 mile) above sea level, where the atmospheric pressure is lower. Natives of the Andes, living nearly 5 km (3 miles) above sea level, have extremely high red cell counts.
The rate of production of erythrocytes is controlled by the hormone erythropoietin, which is produced largely in the kidneys. When the number of circulating red cells decreases or when the oxygen transported by the blood diminishes, an unidentified sensor detects the change and the production of erythropoietin is increased. This substance is then transported through the plasma to the bone marrow, where it accelerates the production of red cells. The erythropoietin mechanism operates like a thermostat, increasing or decreasing the rate of red cell production in accordance with need. When a person who has lived at high altitude moves to a sea level environment, production of erythropoietin is suppressed, the rate of red cell production declines, and the red cell count falls until the normal sea level value is achieved. With the loss of one pint of blood, the erythropoietin mechanism is activated, red cell production is enhanced, and within a few weeks the number of circulating red cells has been restored to the normal value. The precision of control is extraordinary so that the number of new red cells produced accurately compensates for the number of cells lost or destroyed. Erythropoietin has been produced in vitro (outside the body) by the technique of genetic engineering (recombinant DNA). The purified, recombinant hormone has promise for persons with chronic renal failure, who develop anemia because of a lack of erythropoietin.
Ans is C.
Mammals acclimatize to reduced oxygen content at high altitudes by **C. the stimulation of marrow to produce more erythrocytes**. This is because the production of more erythrocytes (red blood cells) helps to increase the oxygen-carrying capacity of the blood, compensating for the lower oxygen levels in the environment. This process is regulated by the hormone erythropoietin, which is produced primarily by the kidneys in response to low oxygen levels.
I don't even need to reinvest the wheel. My colleagues have already done justice to this. The correct answer is C. Please Myschool, correct this answer. Lots of scholars depend on your services for adequate information and preparation.
Reduction in oxygen due to high altitude that is some 10000m above the same level is called the hypoxia, this hypoxia will stimulate the kidney to produce a hormone called the erythropoietin and this hormone will further stimulate the red bone marrow to produce more of Red blood cells to compensate for the oxygen loses at high altitude, remember that more Red blood cell results to more formation of oxyhaemoglobin.
The answer is C
Lets re-arrange the question.
Q: Mammals adapt to reduced oxygen in the body by doing what??
A: Stimulating the bone marrow to produce more Red blood cells because red blood cells has strong affinity for oxygen.
ans - C
my school kindly correct this
i just lost a mark
Mammals adapt to reduced oxygen in the blood at high altitudes by stimulating the bone marrow to produce more oxygen, the answer choosen in this question is wrong and misleading.
I am requesting you review the answer and choose the correct one, thanks for responding
MySchoolNg, please kindly correct this. The explanations for the correct answer have been given by multiple scholars here, and I don't understand why the correction is yet to be made. Please, do the needful.
I am disappointed my school is yet to correct this question, some corrections here were made as far back as 3 years.
Hey. You guys are mis interpreting it . The question said to reduce oxygen not increase it
