to transport oxygen in all parts of the body
The job of red blood cells is to carry oxygen.
Red bone marrow produces red blood cells.
To carry oxygen
to fight disease
They transport oxygen around the body.
Iron
carrying oxygen to the body.
Spleen!
No, that is the job of the various white blood cells.
They carry out oxygen throughout the body. They also contain hemoglobin.
they don't use osmosis
Spleen is the organ of reticuloendothelial system. Secondly it removes the old red blood cells. The life span of the red blood cells is about 120 days.