The major form of stored energy in animal bodies is because it question 6 options: a. glycogen; is lightweight b. protein; is a long-term energy storage form c. fat; has the highest energy content per gram d. fat; is readily stored and dissolved in water e. glycogen; breaks down into readily usable carbohydrates

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

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.