Multiple Choice
Which statement of red blood cell (RBC) structure or function is correct?
A) In mammals and birds,RBCs continuously form from erythroblasts in the red bone marrow.
B) Mammal RBCs do not lose their nucleus when they mature.
C) Over 90% of the cell by weight is hemoglobin.
D) The completely flat shape of RBCs provides greater surface area for osmosis.
E) The average life of an RBC is several years after which its components are salvaged by the liver.
Correct Answer:

Verified
Correct Answer:
Verified
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