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

Example Input: Protist diseases in humans are caused by protozoa.
Example Output: What type of diseases in humans are caused by protozoa?

Example Input: All of the populations that live in the same area make up a(n) community, which includes populations of different organisms.
Example Output: All of the populations that live in the same area make up what type of group, which includes populations of different organisms?

Example Input: Reacting with metal is one thing that distinguishes acids from bases.
Example Output:
Reacting with metal is one thing that distinguishes acids from what?