1) which cell fight against germs a) RBC b) WBC c) platelets d) Arteries 2) Hemoglobin bind with________ and transports it to all part of the body. a) Oxygen b) Carbon dioxide c) Nitrogen oxide d) platelets 3) Clot is formed because of the presence of_________. a) Oxygen b) Carbon dioxide c) Platelets d) Nitrogen 4) Arteries carry___________ blood from heart to all the part of the body. a) Oxygen rich b) Veins c) Platelets d) WBC 5) __________are the vessels which carry CO2 blood from the all parts of the body back to the heart. a) Arteries b) Veins c) WBC d) RBC

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