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

[Q]: Group 16 is called the oxygen group.
[A]: Group 16 is called what?


[Q]: In invertebrates group of animals several forms of asexual reproduction are found.
[A]: In what group of animals several forms of asexual reproduction are found?


[Q]: Genetic equilibrium occurs evolution what process doesn't exist within the population.
[A]:
Genetic equilibrium occurs when what process doesn't exist within the population?