Select the correct number that matches the correct structure. An injury to which region would interfere with the sleep-wake cycle?

1 2 3 or 4

youre right there are

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.

d. organisms have cells with different shapes and functions.