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

Input: Consider Input: Muscle groups are controlled by the motor cortex .

Output: Muscle groups are controlled by what mechanism?


Input: Consider Input: A fewer predators is most likely to cause the number of rabbits living in an area to increase.

Output: Which factor is most likely to cause the number of rabbits living in an area to increase?


Input: Consider Input: Phase is the term for a certain form of matter that has the same physical properties throughout.


Output: What is the term for a certain form of matter that has the same physical properties throughout?