Electron transport is the final stage of aerobic respiration.
Electron transport is like a waterfall.
Transport like a waterfall is the final stage of aerobic respiration.
Transport like what is the final stage of aerobic respiration?

[A] kinetic
[B] a mountain
[C] Chemical energy
[D] a plane
[E] Energy.
[F] Energy
[G] a bus
[H] a waterfall