Which of the following is the correct order of electron flow in the light reactions of photosynthesis?.

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"a.) well–developed vascular system."

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.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate