Which of the following likely made penicillin the "first antibiotic" rather than pyocyanase? o It was used orally, instead of topically
o It was developed by people who are more famous
O It was more effective and safer for treating humans
o Its discovery was published in a more respected journal

i think that it is plants

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.