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

Q: Neutrophils provide an early, rapid, and nonspecific defense against invading pathogens.

A: What provides an early, rapid, and nonspecific defense against invading pathogens?
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Q: Hookworms infest the intestines.

A: What part of the body do hookworms infest?
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Q: External pressure affects the boiling point of water.

A:
What affects the boiling point of water?
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