Question

why do we need blood?

Answer 1

We need blood because without blood humans cant live. It helps to transport the oxygen and nutrients which are important for us to survive. It helps us to fight from infections producing organisms.

Answer 2

Hlo mate

Here is your answer

Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood is made up of blood cells and plasma.

Thanks for asking...