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

Q: Cells are small biological structures that make up all living things, including the human body.

A: What small biological structures make up all living things, including the human body?
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Q: The cells in the follicle undergo physical changes and produce a structure called a corpus luteum.

A: The cells in the follicle undergo physical changes and produce a structure called a what?
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Q: Energy it can not be destroyed.

A:
What is one thing that can not happen to energy?
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