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

Example Input: Pressure and vibration are examples of physical type of stimuli.
Example Output: Pressure and vibration are examples of what type of stimuli?

Example Input: The nuclear envelope is a double-layered plasma membrane like the cell membrane, although without membrane proteins.
Example Output: The nuclear envelope is a double-layered plasma membrane like the cell membrane, although without what?

Example Input: The testes part of the male reproductive system is involved with the most common disorders.
Example Output:
What part of the male reproductive system is involved with the most common disorders?