Biology, 25.06.2019 01:50 jalonnolan

Question 18 of 20: select the best answer for the question. 18. which of the following is true of red blood cells? o a. once created in bone marrow, they circulate for our lifetime o b. they live for only 120 days o c. they have multiple nuclei o d. they live for only about 20 days

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Question 18 of 20: select the best answer for the question. 18. which of the following is true of r...

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