Can someone please tell the answer Food components that help in repair and replacement of worn out cell​

Answer. Protein are the components of food which helps us to repair the worn out cells. The come from many food items like fish, egg and other fruits too.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.