Fact 1: Electron transport is the final stage of aerobic respiration.

Fact 2: Electron transport is like a waterfall.

Given the two facts above, answer the question "Transport like what is the final stage of aerobic respiration?" with the following options: 
- kinetic
 - a mountain
 - Chemical energy
 - a plane
 - Energy.
 - Energy
 - a bus
 - a waterfall


 

        a waterfall 