Identify the correct statement regarding leukocytes. Multiple Choice O Leukocytes spend only a few hours in the bloodstream, then migrate through the walls of the capillaries, Leukocytes are the most abundant formed elements, totaling only 5,000 to 10,000 WBCs/uL. We can live for a long time without them. Leukocytes differ from erythrocytes in that they do not retain their organelles throughout life. Not all leukocytes have lysosomes in the cytoplasm.