The regulatory agency responsible for regulating and supervising medical devices and cosmetics is a. federal communications commission b. u. s. food and drug administration c. federal reserve system d. u. s. postal service.

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

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