I can t find out the cost, but there is your answer!
The circulatory system<span> comprises the </span>heart<span>, veins, capillaries and arteries. ... Once depleted of oxygen, the blood returns to the lungs and </span>heart<span>. To </span>maintain homeostasis<span>, the </span>circulatory system<span> delivers oxygen and nutrients in the blood so that they can pass into fluids surrounding the cells.</span>
B.) its is only used for dna
Their would be alot of mutations in genes. Also, we wouldn't be able to function properly.
