How does your model show that matter is conserved during cellular respiration?
B
1
1999

the answer is c.) there is a warm front in region a and a stationary front in region b.

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.

yes we can.   a lady urinates from her urethra.

yes, because even though a theory has a  lot of evidence to support it, it is not always true