Examlex
Consistent with their belief in individualism, Americans tend to support __________.
Heart Valves
Structures within the heart that maintain unidirectional blood flow through the heart chambers, including the mitral, tricuspid, aortic, and pulmonary valves.
Pressure Gradients
A differentiation in pressure that drives the movement of fluids or gases from areas of high pressure to areas of low pressure.
Osmotic Gradients
The difference in concentration of solutes across a semipermeable membrane, which drives the movement of water.
Breathing
The process of moving air in and out of the lungs to facilitate gas exchange with the internal environment, mainly by bringing in oxygen and flushing out carbon dioxide.
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