Question

question: the vertebrate heart is responsible for pumping oxygen-rich blood through the body and receiving ____ blood to be resupplied. answer input: spelling counts but capitalization doesnt.

Explanation:

In the circulatory system of vertebrates, the heart pumps oxygen - rich blood to the body. After the body's cells use the oxygen, the blood becomes oxygen - poor (or deoxygenated) as it has released oxygen and picked up carbon dioxide. The heart then receives this oxygen - poor blood to send it to the lungs (in pulmonary circulation) or gills (in some vertebrates) to be resupplied with oxygen.

Answer:

oxygen - poor (or deoxygenated)