Use the same article to examine the movement of the continents. Theory of Plate Tectonics

Which phrase describes the movement of the continents?

only coming together
only moving apart
coming together and moving apart
not moving; always in one solid land mass

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.