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

[EX Q]: The mitochondria organelles are known as the "power plants" of the cell.
[EX A]: What organelles are known as the "power plants" of the cell?

[EX Q]: Southern asia does the most important monsoon in the world occur.
[EX A]: Where does the most important monsoon in the world occur?

[EX Q]: Antibodies recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms.
[EX A]:
Which proteins recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms?