How is this new disease discovered in china different from the flu and common cold? this is for a slide presentation.

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.

geologic time scale (for gradpoint) =)

what are the options? add them, then i will be glad to .