Select the word from the list that best fits the definition stated that animals, as well as plants, are made of cells.

the cell theory states that all living things including animals, as well as plants, are made of cells.

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.