In 1998, paleoanthropologist rick potts published an article in the yearbook of physical anthropology, a peer-reviewed journal. the article was titled “environmental hypotheses of hominin evolution.” which statement would discredit potts’s objectivity if it was included in the article?

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.