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Geographic Isolation.Geographic isolation refers to a situation where a physical barrier such as a river or a mountain divides a population of species into two or more groups allowing each group to diverge along separate evolutionary paths. <span>
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I think D would be your best answer
The tricuspid valve, located between the right atrium and the right ventricle; the pulmonary (pulmonic) valve, between the right ventricle and the pulmonary artery; the mitral valve, between the left atrium and left ventricle; and. the aortic valve, between the left ventricle and the aorta.
