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Red blood cell contain a chemical that makes it red but when it dries out it turns black.
Blood contains red blood cells. Red blood cells don't contain blood. Blood does not enter the red blood cell.
This chemical is hemoglobin.
Red blood cells do not contain a nucleus.
Red Blood Cells
Red blood cells contain hemoglobin, primarily, although there are some other proteins included.
Mammalian red blood cells do not contain a nucleus.
white blood cell
red blood cell is the only human cell that does not contain a nucleus
Red Blood Cells
Red blood cells contain hemoglobin, but white blood cells do not
Red bllod cells dont have cytoplasm