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

Input: Consider Input: The long bone work as lever.

Output: What type of function does the long bone perform?


Input: Consider Input: Nonvascular plants are the only plants with a life cycle in which the gametophyte generation is dominant.

Output: What are the only plants with a life cycle in which the gametophyte generation is dominant?


Input: Consider Input: Juvenile hormone modulates the activity of ecdysteroid.


Output: Juvenile hormone modulates the activity of what?