As population size approaches the carrying capacity of the environment, the intensity of density-dependent factors increases. For example, competition for resources, predation, and rates of infection increase with population density and can eventually limit population size.
One thing that a scientist might ask about the movement of carbon dioxide through the whale and its surrounding is “how did the whale get the carbon dioxide?”. Another thing that a scientistmay ask about this is “how does the carbon dioxide affect the ecosystem?”
