American life changed dramatically during the first part of the nineteenth century. The United States’ economychanged from a subsistence economy to a market economy. What does that mean and why did it happen?Write a well-constructed essay that:• Explains the difference between a subsistence economy and a market economy.• Explains the reasons why the shift to a market economy occurred.• Briefly describes the adjustments in manufacturing, agriculture, transportation, and communication that took place in each section of the country during thisperiod. Which of these changes and innovations helped unite the country and why?

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the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.

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