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

[EX Q]: Single-celled organisms and multicellular organisms have this in common: both have a way to get rid of waste materials.
[EX A]: Which characteristic do single-celled organisms and multicellular organisms have in common?

[EX Q]: Phospholipids are vesicles made of.
[EX A]: What are vesicles made of?

[EX Q]: Carry out functions will the contraction of smooth muscles help organs do.
[EX A]:
What will the contraction of smooth muscles help organs do?