Tobacco smoke contains numerous toxic chemicals including organic carcinogens such as polycyclic aromatic hydrocarbons and aromatic amines, inorganic carcinogens such as polonium 210, and arsenic and toxic alkaloids such as nicotine. Nicotine extracted from tobacco has also been used as an insecticide.

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3 years ago

Darwin wrote many of the premises of 'The Theory of Evolution by Natural Selection' by noting differences in the _________ of cl

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He noted the beaks of the finches in the Galapagos Islands.

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3 years ago

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What is the odd one out of breathing, sweating , respiration​ and why?

What is the odd one out of breathing, sweating , respiration and why?