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

Example Input: Platelets blood component serves both structural and molecular functions in blood clotting.
Example Output: What blood component serves both structural and molecular functions in blood clotting?

Example Input: Metabolism produces waste energy in the form of heat, which helps warm-blooded (endotherm) animals conserve and maintain heat at a relatively constant body temperature.
Example Output: Metabolism produces waste energy in the form of heat, which helps what type of animal conserve and maintain heat at a relatively constant body temperature?

Example Input: There are one electrons in the hydrogen atom.
Example Output:
How many electrons are in the hydrogen atom?