Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer searching for novel food sources migrating inland during summer sticking to the usual diet of seals

The answer is searching for novel prey. The melting of Arctic ice is reducing the ice sheet that polar bears use as a platform to hunt seals. They also stand an increased chance of getting stranded by pack ice due to the melting. Therefore polar bears are beginning to hunt snow geese and caribou instead.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

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