Which enzyme(s) in figure 14-8 would be best for cutting dna to make fragments with sticky ends?
a. 1st and 3rd figure
b. 3rd and 2nd figure
c. 3rd figure only
d. 1st and 2nd figure

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.