Which one of the following statements accurately describes a characteristic of red blood cells?
AThey lack hemoglobin.
BThey're convex disks with a large nucleus.
CThey're agents of inflammation.
DThey transport oxygen to all the cells of the body.
AThey lack hemoglobin.
BThey're convex disks with a large nucleus.
CThey're agents of inflammation.
DThey transport oxygen to all the cells of the body.