Does anyone know these questions? please don’t just guess and explain why. i need help.

Ans: True.

Explanation:

the larger the cell gets, the more difficult it is for nutrients and gases to move in and out. As cell grows it's volume increases. These folds increase surface area available for transport of materials into or out of the cell.

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.

synapse nervous system