👉 Red blood cells, known scientifically as erythrocytes, have biconcave discs without a nucleus for streamlined oxygen transport. White blood cells, or leukocytes, vary in shape and size, featuring a nucleus for immune functions.
👉 Red blood cells, known scientifically as erythrocytes, have biconcave discs without a nucleus for streamlined oxygen transport. White blood cells, or leukocytes, vary in shape and size, featuring a nucleus for immune functions.
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