My best friend hasn't cam to school since last week and I try to call her but she nvermind picks up I come to her house she's not home where is she Im really worried and my teachers bday is soon and I don't know what to give her oh dear here comes my mum to take me shopping for my teachers present.
Erythropoiesis (from Greek 'erythro' meaning red and 'poiesis' meaning to make) is the process which produces red blood cells (erythrocytes). It is stimulated by decreased O 2 in circulation, which is detected by the kidneys, which then secrete the hormone erythropoietin.
Erythropoietin (also known as EPO) is a growth factor that stimulates the production of red blood cells. Most of the cells in the blood are red blood cells, whose main function is to carry oxygen throughout the body. Erythropoietin is used to treat anemia resulting from kidney failure or cancer treatment.