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

[EX Q]: Resistors connected end to end are said to be in series.
[EX A]: Resistors connected end to end are said to be in what?

[EX Q]: Nonvascular plants are the only plants with a life cycle in which the gametophyte generation is dominant.
[EX A]: What are the only plants with a life cycle in which the gametophyte generation is dominant?

[EX Q]: Chordates include vertebrates and invertebrates that have a notochord.
[EX A]:
Chordates include vertebrates and invertebrates that have what?