Final answer:
The most effective organizational structure for Jimmy's composition on bear types is division, which allows categorization of each bear species and detailing their specific diets, habitats, and lifespans.
Step-by-step explanation:
When Jimmy is organizing information on the eight types of bears, highlighting their diet, habitat, and lifespan, the most effective organizational structure he could use is division. This structure allows him to divide the broad subject of bears into smaller, manageable categories, such as the individual types of bears. Once divided, he can then organize the details of each bear's diet, habitat, and lifespan effectively.
The polar bears will be most affected by the melting of sea ice in Alaska due to their reliance on sea ice as hunting grounds for seals. Evidence suggesting that an environmental cue triggers physiological changes in grizzly bears, such as hibernation patterns, further illustrates the importance of understanding bear habitats and behaviors in relation to their environments.
Organizing the composition using classification and division will aid readers in comprehending the general concept of different bear species and the specific elements that comprise each one, aligning with our understanding of taxonomy which classifies organisms into groups like the animal kingdom, Animalia.