What happens to rib muscles and the diaphragm when you
inhale and hold your breath?

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

Explanation:

make sure to make and print a resume. go through some questions they might ask you. make sure you dress appropriately for the interview and make sure you are organized and prepared for what they say to you. hope this have a good day! : )

creating amino acids is the answer