Many people think of pollution as the air that we breathe outdoors. Not everyone realizes that the air we breathe indoors is much more polluted. There are pollutants in the atmosphere that have reached a level that is causing a threat to the health of individuals. Pollution began in the early times from the gases of molten volcanic activity being released into the atmosphere. Additional pollutants were caused by the combustion of biomass‚ volatilization of organic compounds‚ and the release of
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Prevention‚ “An estimated 300 hookah cafés operated in the United States in 2006‚ and the numbers continue to grow” (“Smoking and Tobacco Use”). Originated in India and Persia. Discuss the lack of options for teens to hang out at night. Thesis- Hookah bars have increased in popularity because they are a new way to socialize and because teens wrongly believe that the tobacco smoked in a hookah is non-harmful to their health. Why is it happening? Entails positive mood‚ relaxed environment From
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The most frequent types of cancer differ between men and women. About 30% of cancer deaths are due to the five leading behavioral and dietary risks: high body mass index‚ low fruit and vegetable intake‚ lack of physical activity‚ tobacco use‚ alcohol use. Tobacco use is the most important risk factor for
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Nicotine is the addictive drug in tobacco smoke that causes smokers to continue to smoke. Addicted smokers need enough nicotine over a day to �feel normal� � to satisfy cravings or control their mood. How much nicotine a smoker needs determines how much smoke they are likely to inhale‚ no matter what type of cigarette they smoke. Along with nicotine‚ smokers also inhale about 7‚000 other chemicals in cigarette smoke. Many of these chemicals come from burning tobacco leaf. Some of these compounds
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Envision the thought of being exploited just because you’re a woman in what is labeled as a “man’s job.” This is what happened to Rosalind Franklin during the expedition to discover the structure of DNA. Her compelling evidence is what ultimately led scientists James Watson and Francis Crick to the revelation of DNA structure. Franklin’s expertise in X-ray crystallography led to the infamous “Photo 51.” This photo was the deciding factor in what Watson and Crick were theorizing in their own studies
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Cited: " Centers for DiseaseControl and Prevention. N.p.‚ 15 Nov. 2012. Web. 28 Feb. 2013. <http://www.cdc.gov/tobacco/data_statistics/fact_sheets/youth_data/tobacco_use/index.htm>. 2 Smoking. Ed. Laura K. Egendorf. Detroit: Greenhaven Press‚ 2008. 37-44. Issues That Concern You. Gale Virtual Reference Library. Web. 3 Mar. 2013. Detroit: Greenhaven Press‚ 2008
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Each time a cigarette is smoked the detrimental chemicals pass through the airways to the lungs. A person may start with just a cough‚ but as time goes on they can come to develop asthma‚ COPD‚ emphysema‚ and then even cancer. When the lungs become irritated from the smoke‚ the cells that produce mucus will grow in quantity and size. This causes thicker and greater amounts of mucus in the lungs and airways. When there is an overproduction of mucus‚ your system has a hard time clearing it out. The
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Immortal life of Henrietta Lacks Her name was Henrietta Lacks‚ but scientists know her as HeLa. Henrietta was a poor southern tobacco farmer who was emitted to the hospital and had her cells taken without her knowledge. Her cells became the most important tools in medicine. HeLa were the first “immortal” human cells grown in culture‚ and are still alive today. Due to research they say that if you could pile all HeLa cells ever grown onto a scale‚ they’d weigh more than 50 million metric tons—as
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The characteristics of a healthy cell and a cancer cell is very different. Healthy cells stop reproducing when there are enough cells‚ however‚ cancer cells continue to reproduce. Due to this continued growth a tumor‚ which is a cluster of cancer cells‚ is formed. Cancer cells do not interact with other cells like the healthy cells. Healthy cells stop growing when they hear signals from the nearby cells‚ in contrast‚ cancer cells do not respond to these signals. When healthy cells get old or damaged
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Biology End of Year Revision Quick Recap on Graphs: * Always remember to include units * Put the dependent (thing you measure) along the y-axis. (One going up) * Put the independent (thing you change) on the x-axis (along the bottom) * Don’t join the dots up‚ draw a line of best fit. * Circle anomaly result. Healthy Diet For a healthy diet‚ you need energy. So you need: CARBOHYDRATES‚ to release energy. FATS‚ to keep warm and release energy PROTEIN‚ for growth cell
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