👉 Red blood cells, or erythrocytes, are tiny, round packages carrying oxygen throughout the body. White blood cells, or leukocytes, serve as the immune system's sentinels, rapidly identifying and combating infections.
👉 Red blood cells, or erythrocytes, are tiny, round packages carrying oxygen throughout the body. White blood cells, or leukocytes, serve as the immune system's sentinels, rapidly identifying and combating infections.
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