The blood is the great transport system of your body. It delivers nutrients inc oxygen to your cells and takes back all the wastes from the cells to be eliminated by your body.
What is the meaning of blood?
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) - such as nutrients and oxygen - and transports waste products away from those same cells.
The red liquid that circulates in the arteries and veins of vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body..