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

Q: Urea is made in the liver and excreted in urine.

A: What is made in the liver and excreted in urine?
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Q: You call egg-shaped galaxies, which are reddish to yellowish in color because they contain mostly old stars, elliptical galaxies.

A: What do you call egg-shaped galaxies, which are reddish to yellowish in color because they contain mostly old stars?
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Q: The integumentary system helps regulate body temperature through its tight association with sympathetic nervous system system involved in our fight-or-flight responses.

A:
The integumentary system helps regulate body temperature through its tight association with what system involved in our fight-or-flight responses?
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