How does modification of stem occur?Write any two examples

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

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.

not: both offer magnification to the atomic level.