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23 Feb 2005, 14:32
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N
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Studies have found that nicotine, which is introduced into the body by cigarettes and cigars, kills a number of different kinds of disease-causing bacteria found in the body. Nicotine also destroys chemical antibodies that would fight such bacteria. Some forms of bacteria, including the kinds that cause gum disease, are not vulnerable to nicotine. The above passage best supports which of the following conclusions?
(A) Bacteria that are not vulnerable to nicotine are generally more dangerous than those that are.
(B) Smokers are more likely than nonsmokers to contract gum disease, but they are less likely to contract other bacterial diseases.
(C) The nicotine introduced into the body by cigarettes kills more kinds of bacteria than the nicotine introduced into the body by cigars.
(D) The number of chemical antibodies that fight disease-causing bacteria is greater than the number of different kinds of disease-causing bacteria.
(E) Nonsmokers are less likely than smokers to contract gum disease.
(A) Bacteria that are not vulnerable to nicotine are generally more dangerous than those that are.
(B) Smokers are more likely than nonsmokers to contract gum disease, but they are less likely to contract other bacterial diseases.
(C) The nicotine introduced into the body by cigarettes kills more kinds of bacteria than the nicotine introduced into the body by cigars.
(D) The number of chemical antibodies that fight disease-causing bacteria is greater than the number of different kinds of disease-causing bacteria.
(E) Nonsmokers are less likely than smokers to contract gum disease.
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23 Feb 2005, 14:37
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I got D through POE...I'll try to explain it after work...and if I'm right 
23 Feb 2005, 14:42
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I believe it is (B)
nicotine destroys useful antibodies and also some harmful bacteria
since nicotine is ineffective against bacteria that causes gum disease the smokers are more likely to develop gum disease because the nicotine has destroyed useful antibodies.
However smokers are protected agianst other diseases because nicotine kills harm causing bacterias.
nicotine destroys useful antibodies and also some harmful bacteria
since nicotine is ineffective against bacteria that causes gum disease the smokers are more likely to develop gum disease because the nicotine has destroyed useful antibodies.
However smokers are protected agianst other diseases because nicotine kills harm causing bacterias.
..I know I can't do that on the GMAT but after looking it over I think I chose too quickly....
