TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Natural resource type of resource is limited in supply and cannot be replaced except over millions of years.

SOLUTION: What type of resource is limited in supply and cannot be replaced except over millions of years?

PROBLEM: Most ferns produce the same type of spores and are therefore called homosporous.

SOLUTION: Most ferns produce the same type of spores and are therefore called what?

PROBLEM: Where a cell resides, how it appears, and what it does define its development fate.

SOLUTION:
Where a cell resides, how it appears, and what it does define its what?