The pregnany women began to have contractions of the uterus in preperation for childbirth. what is the nam eof the hormone that initiated her contractions

this would be a math

not sure if this is what you'r looking for eubacteria and archaebacteria

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.