Data Puzzle: What's the Limit?

This data puzzle is a stand-alone lesson that is part of a larger collection of data puzzles.

Moss campion is a hearty flowering plant that thrives in harsh arctic and alpine tundra ecosystems over a wide range of latitudes in North America. In this Data Puzzle, students analyze authentic moss campion growth and survival data to construct explanatory models for the following question, "How is the growth and survival of moss campion affected by latitude?"