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

Example Input: Trichomoniasis is cause by a protozoa.
Example Output: Trichomoniasis is cause by what type of pathogen?

Example Input: After fertilization, a zygote forms into two cells.
Example Output: After fertilization, how many cells does a zygote form into?

Example Input: Circadian rhythms is the term for daily cycles of behavior, like the sleep-wake cycle.
Example Output:
What is the term for daily cycles of behavior, like the sleep-wake cycle?