1) There is a ..... Between the 2 sides of heart to prevent blood mixing. a) Valve b) Wall c) Atrium d) Ventricle e) Vein f) Artery 2) Small bodies play role in blood coagulation a) Platlets b) WBCS c) RBCS d) plasma 3) Which blood groug has no anti body ? a) AB b) O c) A d) B 4) A yellowish fluid in which blood components float . a) Platlets b) Plasma c) WBCs d) Rbcs

circulatory system

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