instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Most ferns produce the same type of spores and are therefore called homosporous.
answer:
Most ferns produce the same type of spores and are therefore called what?


question:
Pheromones enable communication, which is vital for organisms like ants that live in a large community.
answer:
Pheromones enable what, which is vital for organisms like ants that live in a large community?


question:
Nervous system system is capable of responding quickly to changing situations.
answer:
Which system is capable of responding quickly to changing situations?