TRUE OR FALSE As chemical reactions occur, energy is transferred from one system of interacting molecules to antoher and then release energy to the surrounding environment and maintain homeostasis such as body temperature.

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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.