When humans breed organisms, they are selecting variations that occur naturally in populations. True or false ?

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.

idk lol use google m8

i won't lie i don't know so go online and ask google thats what i do