Question

9 why is the cardiovascular system vital to survival? multiple choice it ensures that the lungs fully inflate it supplies oxygen and nutrients to cells. it delivers waste molecules to vital organs. it delivers carbon dioxide to tissues and removes excess oxygen.

Explanation:

The cardiovascular system consists of the heart and blood - vessels. Its main function is to circulate blood throughout the body. Blood carries oxygen from the lungs and nutrients from the digestive system to all cells in the body, which is essential for cell survival and function. The lungs' full inflation is mainly related to the respiratory muscles and the respiratory system's mechanics, not the main function of the cardiovascular system. Waste molecules are transported to excretory organs (like kidneys) for removal, not just delivered to vital organs. The cardiovascular system transports carbon - dioxide from cells to the lungs for exhalation and oxygen from the lungs to cells, not the other way around as stated in the last option.

Answer:

It supplies oxygen and nutrients to cells.