Final answer:
The analytic method focuses on dynamic interactions within systems, and the term that describes the use of mathematical equations in ecosystem modeling is analytical modeling.
Step-by-step explanation:
According to the authors, the analytic method, when applied to systems, focuses on dynamic interactions.
The term that describes the use of mathematical equations in the modeling of linear aspects of ecosystems is analytical modeling. Analytical models use mathematical equations to represent the relationships and processes within ecosystems. The benefit of analytical modeling is its ability to provide precise predictions under certain assumptions, making it a powerful tool for understanding system dynamics.