TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: In the tropics tradewinds are the prevailing winds called.

SOLUTION: In the tropics what are the prevailing winds called?

PROBLEM: The pupil is the name of the black opening in the eye that lets light enter.

SOLUTION: What is the name of the black opening in the eye that lets light enter?

PROBLEM: Organisms categorized by ring species species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully.

SOLUTION:
Organisms categorized by what species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully?