A line graph is the best way to represent the data
in the table
What information belongs on the x-axis?
salt concentration outside paramecium
contractions per minute
DONE

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.

3. is true i think i should be right