IM TAKING A QUIZ HELPPP Cells maintain differentiation (look similar to surrounding cells) is benign or malignant

We call such tumors benign; an example is warts. ... keep benign tumor cells, like normal cells, localized to appropriate tissues. ... instead, they invade surrounding tissues, get into ... Thus the major characteristics that differentiate metastatic (or malignant) ...

Explanation:

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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.