A.) How do we know cells exist? B.) How does our body fulfill so many different functions? Please answer thoroughly with examples! Thank you! Have an awesome day!

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.

d. groundwater flows through the subsoil and deposits minerals.

protistas excret ethanol used in the manufacture of vinegar