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: Ribosomes are the only organelles that prokaryotic cells have.

Answer: What are the only organelles that prokaryotic cells have?


Question: Microevolution is the process by which organisms change in small ways over time.

Answer: What is the process by which organisms change in small ways over time?


Question: When a fluorine atom gains an electron, it becomes a negative fluoride ion.

Answer:
When a fluorine atom gains an electron, it becomes a negative what?