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Describe an ion channel.
Immigration
The action of people moving to a foreign country or region to live, often for economic reasons, safety, or to start anew.
Democrat James Polk
The 11th President of the United States (1845-1849), known for his expansionist policy, leading to significant territorial acquisitions for the country.
Presidency
The presidency refers to the office and function of the president, who is the elected head of state in a republic, responsible for executing the laws and governing the nation.
Mexican Government
The federal republic governing structure of Mexico, consisting of an executive, legislative, and judicial branch.
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