They travel in the blood. They are one of the 4 components of the blood and they travel collectively
Red cells are in the blood and transport oxygen around the body
Red blood cells
Red blood cells, also known as hemoglobin, carry oxygen around the body. The red blood cells are found in the bodies blood.
The red blood cells have that function.
Take blood around your body.
Red blood cells carry oxygen around the body. They contain hemoglobin, a protein that binds to oxygen in the lungs and releases it to tissues throughout the body.
Red blood cells
Red blood cells because that is what carries oxygen throughout the body
Oxygen is carried to the cells of the body by red blood cells through the bloodstream. Hemoglobin, a protein found in red blood cells, binds to oxygen in the lungs and transports it to tissues throughout the body for cellular respiration.
A possible answer is because white blood cells are only required for when there is a threat to the body, whereas red blood cells are needed constantly for transport of oxygen around the body.
Red blood cells carry oxygen around the body and to the cells.
The hemoglobin or "red cells".