Fact 1: Vesicle transport requires energy, so it is also a form of active transport.

Fact 2: Active transport is another form of diffusion.

Given the two facts above, answer the question "Vesicle transport is a form of _." with the following options: 
- diffusion
 - animals
 - communication
 - movement
 - direct energy
 - resistance
 - Vibrations.
 - motion


 

 diffusion        