The Arctic fox would either go extinct or it would adapt to seek out new sources of food. These could be the chicks of seabird colonies or walrus/seal pups. It could also adapt to feed on the young of its competitors. Another feeding adaptation would be to scavenge for dead animals or the kills of other predators. Thess adaptions might require behavioural and/or physical changes to be evolved.
Answer:
Most preservation methods cannot completely eliminate spoilage phenomena indefinitely.
Explanation:
There are many different types of preservation methods. They inclue things like dehydration, smoking, fermentation, salting, sweetening, canning, freezing, ultra high temperature, and irradation. Although some of these change food integrity, others maintain it. However, no method of preservation can preserve food indefinitely.
(I'm not 100% positive on this) Dinosaurs, many chickens and birds are related to dinosaurs
More enzymes more useful collisions
Alveolar walls are thin to enable the quick passage of oxygen in and out of the lungs. The lungs works hand-in-hand with the heart and also is responsible in converting blood that's de-oxygenated into an oxygenated blood that is usable by the organ systems of the body. The alveolar walls are also designed to have thin membranes so that it can expand and constrict quickly allowing us to breather properly.
