👉 Red blood cells are tiny, spherical structures with no nucleus that swiftly transport oxygen throughout the body. White blood cells, larger and often irregularly shaped with nuclei, rapidly engulf pathogens to fight infections.
👉 Red blood cells are tiny, spherical structures with no nucleus that swiftly transport oxygen throughout the body. White blood cells, larger and often irregularly shaped with nuclei, rapidly engulf pathogens to fight infections.
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