In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[EX Q]: Question: 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? Answer: ring species
[EX A]: 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.

[EX Q]: Question: What is it called when poles are in opposite positions? Answer: reversed polarity
[EX A]: Reversed polarity is it called when poles are in opposite positions.

[EX Q]: Question: What do you call the physical environment in which a species lives and to which it is adapted? Answer: habitat
[EX A]:
You call the physical environment in which a species lives and to which it is adapted habitat.