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Question 6 3 / 3 points Which of the following is the primary function of red blood cells? o To carry oxygen from the lungs to all cells of the body; to carry some carbon dioxide from the cells back to the lungs. To bind some ions and molecules in the blood which are not water-soluble. To help fight off infection as part of the immune system. To help in the process of hemostasis, the stoppage of blood flow following damage to a blood vessel. To bind and carry away waste products from most cells of the body. ¥ Hide question 6 feedback Good work; your answer is correct! Question 7 3 / 3 points What is the most common leukocyte in the human body? natural killer (NK) cells lymphocytes o neutrophils basophils eosinophils W Hide question 7 feedback Good work; your answer is correct!