👉 Red blood cells are biconcave discs packed with hemoglobin, swiftly transporting oxygen throughout the body. White blood cells act as defenders, engulfing bacteria and other invaders to fight infection.
👉 Red blood cells are biconcave discs packed with hemoglobin, swiftly transporting oxygen throughout the body. White blood cells act as defenders, engulfing bacteria and other invaders to fight infection.
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