The expense of making an additional shirt is know as the marginal cost. Hope this helps, good luck.
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It outlawed the discriminatory voting practices adopted in many southern states after the Civil War, including literacy tests as a prerequisite to voting. This “act to enforce the fifteenth amendment to the Constitution” was signed into law 95 years after the amendment was ratified.
It helped reduce voter discrimination at polling sites. It contributed to increased involvement of lobbyists in political campaigns. The Voting Rights Act itself has been called the single most effective piece of civil rights legislation ever passed by Congress.
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Answer:
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Explanation:
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Explanation:
Charles Darwin & Alfred Russel Wallace. A visit to the Galapagos Islands in 1835 helped Darwin formulate his ideas on natural selection. He found several species of finch adapted to different environmental niches. The finches also differed in beak shape, food source, and how food was captured. Natural selection is the mechanism suggested by Darwin for evolution. Because resources are limited in nature, organisms with heritable characteristics that favor survival and reproduction leave more offspring than their peers, causing the traits to become more common over generations.