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

Q: Platelets blood component serves both structural and molecular functions in blood clotting.

A: What blood component serves both structural and molecular functions in blood clotting?
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Q: To determine the atomic weight of an element, you should add up protons and neutrons.

A: How do you determine the atomic weight of an element?
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Q: A heart attack or stroke is often a result of untreated atherosclerosis.

A:
What is often a result of untreated atherosclerosis?
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