Given a statement, generate a question such that the answer is contained in that statement.

[EX Q]: neurons transmit electricity
[EX A]: Who transmit electricity?

[EX Q]: blending with colors and patterns is used by prey to avoid predators
[EX A]: Who uses colors and patterns to avoid predators?

[EX Q]: A bicycle is a vehicle that requires level surfaces.
[EX A]:
What does a bicycle require?