Ahh okay

maybe i should have worded it something like... What creates its continuously changing gear ratios?

Well from my quiz, the key point there was Belt and Cone which doesnt apply to the Prius's "CVT". Belt and Cone uses a belt or chain and 2 cones to create the gear ratios. Since the cone has an inclined plane the belt moves freely without a fixed gear ratio. Prius uses the electric motor to do the same thing...i see why they call it eCVT now.

A Prius a day keeps the doctor away!