The combining form erythr(o)- as in erythropoiesis denotes _______. A: yellow B: lue C: white D: ed

红细胞通过红细胞生成过程产生，含有血红蛋白，能与氧和二氧化碳结合。 A: Erythrocytes are formed by a process called erythropoiesis. They contain hemoglobin, which is capable of combining with oxygen and carbon dioxide. B: Erythrocytes are produced by a process called phagocytosis. They contain renin, which is capable of combining with oxygen and carbon monoxide.