Erythropoietin is a Hormone

Question

Erythropoietin is a hormone
A) released by the liver to stimulate red blood cell production.
B) released by the liver to stimulate white blood cell production.
C) released by the kidneys to stimulate red blood cell production.
D) released by the kidneys to stimulate red and white blood cell production.
E) released by the bone marrow to stimulate red blood cell production.

Accepted Answer

Erythropoietin is primarily released by the kidneys to stimulate red blood cell production in response to low oxygen levels. It is not released by the liver or bone marrow and does not stimulate white blood cell production.