Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Population is an important level of organization in ecology and the unit of microevolution.

Answer: What is an important level of organization in ecology and the unit of microevolution?


Question: Muscle groups are controlled by the motor cortex .

Answer: Muscle groups are controlled by what mechanism?


Question: Nuclear energy is released when the nucleus of an atom is split.

Answer:
What kind of energy is released when the nucleus of an atom is split?