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Author Question: The following represents the structure of a purine base: (Read 82 times) |
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
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The longest a person has survived after a heart transplant is 24 years.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").