Question

our body how to use blood​

Answer 1

blood is used for supplying oxygen to cells and tissues. providing essential nutrients to cells, such as amino acids, fatty acids, and glucose. removing waste materials, such as carbon dioxide, urea, and lactic acid. protecting the body from infection and foreign bodies through the white blood cells.

hope that this will help you

Answer 2

our body use the blood as a medium to transport food, to fight against the diseases, etc..