In response to a decrease in the concentration of blood <u>oxygen</u>, the kidneys secrete <u>erythropoietin</u>.
In the field of biology, erythropoietin can be described as a hormone that helps in the production of red blood cells (RBC). As red blood cells are the sites that carry oxygen in the blood, more red blood cells mean that the concentration of oxygen will increase inside the blood.
Erythropoietin, which is also referred to as haematopoietin, is produced inside the kidneys. The interstitial cells of the kidneys are the main sites for the production of erythropoietin.
Erythropoietin is produced by the kidneys as a kind of response mechanism when there are decreased levels of oxygen inside the blood. When the oxygen level in the blood reaches a normal level, the production of this hormone is lowered by the kidneys.
Although part of your question is missing, you might be referring to this full question:
In response to a decrease in concentration of blood __________, the kidneys secrete __________.
calcium; renin
oxygen; erythropoietin
sodium; aldosterone
potassium; ADH
glucose; insulin
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Risk avoidance is the process of applying safeguards to avoid a negative
impact. Risk avoidance
is a risk treatment that removes hazards, activities and exposures that can influence
an organization's assets negatively.
Examples of risk avoidance are business strategy, information security and investing.
Hatcheries provide artificial shelter for fish versus the natural shelter found in a stream.
Compared to hatchery fish, wild fish are usually more successful at surviving the rigors of the natural environment long enough to reproduce. Fewer than 1% of the smolts released from the hatchery return home to spawn.