How Were the Old World Long-Distance Trade Routes a Precursor

question 48

Essay

How were the Old World long-distance trade routes a precursor to the global economy? First,provide two examples of the commodities exchanged by Arab and Chinese traders,discussing how these products circulated from Asia to Europe.How and when did the movement of slaves occur in the eighth and ninth centuries?

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Definitions:

Cardiac Output

The volume of blood the heart pumps per minute, a critical measure of heart function and body's demand for oxygen.

Sympathetic Nerves

Part of the autonomic nervous system, these nerves prepare the body for stress-related activities, often described as the "fight or flight" response.

Ventricular Contraction

The phase of the heart cycle in which the ventricles contract, pumping blood out of the heart to the body and the lungs.

Cardioregulatory Center

A region in the brain, specifically in the medulla oblongata, that regulates heart rate and blood pressure in response to changes in the body such as physical activity or stress.