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

[Q]: Cells are the  basic building blocks of the human body.
[A]: What are the  basic building blocks of the human body?


[Q]: Hookworms infest the intestines.
[A]: What part of the body do hookworms infest?


[Q]: Antibodies bind to foreign substances and attempt destruction.
[A]:
What type of proteins bind to foreign substances and attempt destruction?