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: The reverse process of moving material into a cell is the process of exocytosis.

Answer: The reverse process of moving material into a cell is the process of what?


Question: When light passes from one medium to another, it changes speed.

Answer: When light passes from one medium to another, it changes what?


Question: The haploid gametophyte produces gametes through mitosis.

Answer:
By what process does the haploid gametophyte produce the gametes?