Drag and drop the numbers into the table to show the energy available at each trophic level of an energy pyramid that contains these four organisms.

1,10,100,1000. the energy rises as it is more and more consumed.

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.