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Tobacco

APUSH Chp. 11 Fall of Other Forms of Cotton

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Tobacco: Upper South - continuing reliance on tobacco, but tobacco notoriously unstable and land-exhaustive - 1830s: ? farmers from old tobacco-growing regions (Virginia, Maryland, North Carolina) changing to other crops ? center of tobacco cultivation to Piedmont Rice: Coastal South (South Carolina, Georgia, Florida) - stable, lucrative, BUT long growing season (9 months), substantial irrigation - only small area of cultivation Sugar: Gulf Coast, southern Louisiana and eastern Texas - Reasonably profitable - Intensive (debilitating) labor, long growing time ? only wealthy could afford to cultivate - Major competition from Caribbean - Did not spread Long-staple (Sea Island) Cotton: coastal regions of Southeast - Could only grow in limited area

Ch 18

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Chapter 18 Study guide 1. Sugar cane was first grown in the West Indies by Spanish colonists shortly after 1500, but after 1600 A: The English and French grew tobacco there. 2. Although tobacco was a New World plant long used by Amerindians, A: tobacco use became enormously popular in Europe. 3. In order to make tobacco trade profitable, European governments used chartered companies, A: private investors with trade monopolies in colonies. 4. Which of the following does not describe the Dutch West India Company? A: It was never very profitable. 5. The expansion of sugar plantations in the West Indies required A: a sharp increase in the African slave trade. 6. The cultivation and production of sugar can best be described as

Investigating the effect of nicotine on the heart rate of Daphnia

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SBI4U Shonara Gibson December 7, 2010 Partner: Helen Picard Investigating the Effect of Nicotine on the Heart Rate of Daphnia Results: Table 1: Heart Rate of Daphnia with Various Amounts of Nicotine Present in Surroundings Amount of Nicotine in Surroundings (drops) Heart Rate (beats per minute) Average Variation Daphnia #1 Daphnia #2 No nicotine 384 372 378 10% of 378 = 38 Variation 6 6 6 1 drop 402 414 408 10% of 408 = 41 Variation 6 6 6 2 drops 420 420 420 10% of 420 = 42 Variation 0 0 0 3 drops 510 480 495 10% of 495 = 50 Variation 15 15 15 Figure 1: Graph showing Heart Rates of Daphnia with Increasing amounts of Nicotine Present in Surroundings Sample Calculations:
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