Which structure carries blood to the heart so the heart has its own supply of oxygen and nutrients to perform its function? a)pulmonary artery b)coronary arteries c)superior vena cava d)inferior vena cava

On edge.nuity the answer is B- coronary arteries.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.