In their experiment to form a primitive living cell, urey and miller set up various flasks with water vapor and the gases co2, ch4, and h2. one flask also had electrodes to generate spark; another flask had electrodes to generate spark; another flask had everything but electrodes. which of the flasks showed presence of coacervates, and why?
a: only the flask with the electrodes because the electrodes were a source of electricity that simulated lighting.
b: only the flask without electrodes because the electricity generated from electrodes would have destroyed the coacervates.

answer; i believe that the correct answer is (lung);

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.