<span>The chaparral is characterized by sparse, rough terrain and nutrient-poor soil meaning that no single resource is overly abundant. Therefore, a varied diet allows an animal to make use of a wider selection of the resources that are available to it and thereby thrive.</span>
It would be commensalism- a symbiotic relationship where one organism benefits while the other remains unaffected.
In scientific inquiry, observations can be made in many ways. This includes by using the senses, or performing an experiment.