Which statement is true? (A) diploid cells contain two sets of chromosomes l.
(B) haploid cells contain chromosomes from each parent.
(C) haploid cells are attached to diploid cells with spindle fibers.
(D) diploid cells contain half the original of chromosomes.

A) diploid cells contain two sets of chromosomes

true is the final answer!

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.