Which of the following best defines gene ffow? O the Sum of all genetic traits ina population's individuals at a given time
O any movement of qenes from one population to another
any mOvement of organisms from one environment to nother
O the random change in the frequency of an allele in a population

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.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.