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

[Q]: The bird ancestor that lived in trees developed wings, which is commonly associated with birds.
[A]: The bird ancestor that lived in trees developed what feature commonly associated with birds?


[Q]: All of the populations that live in the same area make up a(n) community, which includes populations of different organisms.
[A]: All of the populations that live in the same area make up what type of group, which includes populations of different organisms?


[Q]: Mutations in regulatory genes that normally control the cell cycle cause cancer.
[A]:
Mutations in regulatory genes that normally control the cell cycle cause what?