Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Bacteria may divide several times an hour.
[A]: Bacteria may divide several what an hour?


[Q]: Muscle groups are controlled by the motor cortex .
[A]: Muscle groups are controlled by what mechanism?


[Q]: Toxins is contained in the skin of brightly colored poison dart frogs.
[A]:
What is contained in the skin of brightly colored poison dart frogs?