What are the six steps that ecological models use to explain relationships among variables in nature?
a) Observation, hypothesis formation, experimentation, data analysis, conclusion, and communication.
b) Identification of variables, data collection, correlation analysis, model development, validation, and interpretation.
c) Conceptualization, formulation, parameterization, simulation, validation, and prediction.
d) Problem formulation, simplification, quantification, prediction, validation, and communication.
