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

[EX Q]: Articular processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head.
[EX A]: What processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head?

[EX Q]: Plasmodesmata connect to cytoplasms in the plant cell.
[EX A]: What do plasmodesmata connect to in the plant cell?

[EX Q]: The chains in cellulose stack in parallel rows held together by hydrogen bonds between hydroxl groups groups.
[EX A]:
The chains in cellulose stack in parallel rows held together by hydrogen bonds between which groups?