6. Some graphs require several different colored bars rather than a single bar. What element is necessary in order to identify the different bars?

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.

False scientific ideas are tentative agree uponfor example television set