sentence2_structure: Each species<>has<>a particular way of making a living$$$a living<>is called<>its niche
sentence1: I may not be as personally involved in the campers lives but it takes each one of us to do our part, to fill our niche that we have been called to.
sentence2: Each species has a particular way of making a living, which is called its niche.
question: Each species has a particular way of making a living which is called its what?