The Benefit Provided by a Heart with Two Atria Is

Multiple Choice

The benefit provided by a heart with two atria is

A) the separation of oxygenated and deoxygenated blood.
B) that blood moving to the body tissues is at a higher pressure than it would be if it had flowed through the lungs first.
C) that blood moving to the lungs is at a higher pressure than it would be if it had flowed through the body first.
D) that blood moving to the body tissues is at a lower pressure than it would be if it had flowed through the lungs first.
E) that there are two muscular regions for pumping.