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answers
average life span of a red blood cell - ✔✔120 days
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proteins on the surfaces of erythrocytes - ✔✔antigens
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type of WBC count that can help pinpoint the nature of an illness - ✔✔differential
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oxygen carrying protein - ✔✔hemoglobin
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feedback system that controls blood clotting - ✔✔positive
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platelets - ✔✔thrombocytes || ||
substance responsible for conversion of fibrinogen to fibrin - ✔✔thrombin
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insoluable material that causes blood cells to catch during bleeding - ✔✔fibrin
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neutrophils and monocytes are this - ✔✔phagocytic || || || || || ||
a clot that forms abnormally in a specific vessel - ✔✔thrombus
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hormone released in response to low oxygen levels - ✔✔erythropoietin
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