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

Q: Respiratory acidosis is considered to be problematic because excess co2 in blood.

A: Why is respiratory acidosis considered to be problematic?
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Q: In science, something that always applies under the same conditions is called a scientific law.

A: In science, what do you call something that always applies under the same conditions?
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Q: Five many different types of taste neurons does the tongue contain.

A:
How many different types of taste neurons does the tongue contain?
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