| Leukocytes are white blood cells that |
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| Platelets are tiny bodies that |
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| Arteries are blood vessels that |
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| Haemoglobin is a substance that |
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| Kidneys are organs that |
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| Platelets are tiny objects that |
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| Leukemia is a disease that |
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| Type AB is a blood group that |
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| Stem cells are special cells that |
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| Carbon dioxide is a gas that |
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