Use an analogy to describe the role of atp in living organisms

A common analogy is money. ATP is the money source of an organism. TO do something, it has to expend ATP, or in other words, pay money.

Continental Drift is the theory that seeks to explain such phenomena as the discovery of fossil collections of similar species on two continents that are widely separated. Continental Drift theory states that the continents were once connected to one another and over time because of shifts in the tectonic plates the continents shifted a part. Thus certain species once lived in the same area which were then separated by the shifting of the continents.