Examlex
According to the theory of comparative advantage, trade and specialization ________ productivity by ________ opportunity costs.
Branches
The divisions or subdivisions of a field or subject, such as the various branches of science or knowledge.
Neurons
Specialized cells of the nervous system that transmit signals between different parts of the body.
Metabolic Activity
The biochemical processes that occur within living organisms to maintain life, including the conversion of food to energy and elimination of waste products.
Myelin
A fatty substance that surrounds and insulates the axons of many neurons, improving the speed at which electrical impulses propagate along the nerve cells.
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