Answer;
B. observing.
Step-by-step explanation;
-Observation is important in ecological inquiry as it is the first step in asking ecological questions. . Observations may be the first step in designing experiments and models.
-Observational ecology demonstrates how and why direct sensory awareness of the natural world is a bridge to deeper ecological understanding. This is a groundbreaking work for teachers, scientists, policymakers, and citizens. It empowers the reader to blend disciplined observation with rigorous science.