the producers in the ecosystem produce 25,000,000 kilocalories per year. how much energy is most likely to be available to the organisms in the second level

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.

bacterium is not correct