In an h-r diagram, most stars are found in a diagonal band from the upper left to the lower right, which is called the__

The correct answer is main sequence stars.

Explanation:

A plot of stars absolute magnitude versus the surface temperature is considered as the H-R diagram. There are three prime components of the H-R diagram:  

A section in the H-R diagram where the stars devote the majority of their lifetime is called the main-sequence. It refers to the band that elongates from the upper left side to the lower right side. Post main sequence, the star either turns into a super red giant or red-giant.  

answer; ///i believe the answer is (antioxidant);

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.