The ancient system of trade routes that ran from Rome to China was known as the:

The correct answer is the Silk Road, also known as the Silk Route,

Explanation: The Silk Road was a network of trade routes that connected China and the Far East with the Middle East and Europe. The Silk Road was first established when the Han Dynasty in China officially started trade with the West in 130 B.C. The Silk Road routes then stayed in use until 1453 A.D., when the Ottoman Empire boycotted trade with China and closed them.

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.