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: Sucrose is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond.

Answer: What is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond?

Question: Lying with their mouths open, a behavior called gaping, probably serves the function of cooling down for crocodiles.

Answer: Lying with their mouths open, a behavior called gaping, probably serves what function for crocodiles?

Question: The "knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of a reflex

Answer:
The "knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior?