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If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?
Aortic Valve
A heart valve located between the left ventricle and the aorta that regulates blood flow from the heart into the aorta.
Base of Heart
The upper portion of the heart, including parts of the atria and the large vessels that lie at the heart's base.
Apical Impulse
The point of maximal impulse on the chest wall, indicating the position of the heart; often felt during cardiac examination.
Intercostal Space
The anatomical area between two ribs, through which nerves and blood vessels pass.
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