The developmental stage at which erythrocytes enter the circulation is as

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Erythrocytes enter the circulation as reticulocytes, which are immature red blood cells that still have residual ribosomal material. They eventually lose this material and fully mature into erythrocytes. Hemocytoblasts, myeloid cells, and proerythrocytes are all earlier stages of red blood cell development, while band forms are a type of immature white blood cell.

The Developmental Stage at Which Erythrocytes Enter the Circulation Is