ASAP Please answer the questions in the images below. Thanks! Will give BRAINLIEST

nucleus

would be most reasonable answer tbh

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.

if you look up in the top right corner you'll see your current profile picture, click than click "view profile" you'll be able to change it there.