The specialization of peripheral countries in raw materials and foodstuff, the decentralization of manufacturing to areas of low labor costs, and the emphasis of core regions on high-tech manufacturing and services describes:

International division of labour.

Explanation:

The separation of work into number of tasks is known as division of Labor.

It is important for the economic progress because it allows the people to specialise in particular tasks. The specialisation makes them more efficient and reduces the cost of total production.

International division of labour is the process that occurs when the production in not limited to national economies. According  to the "old " International division of labour the underdeveloped countries were incorporated in the world economy as the supplier of agricultural commodities and minerals, It lasted till 1970's. While according to the theory of New International Division of Labour(NIDL) the manufacturing is shifting from advanced capitalist countries to developing countries.

it maybe, we dont know. however lucky the lipercon seams guilty

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to