Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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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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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Estimated terrestrial net primary productivity across Canada.
Various Substances Used in Piaget’s Conservation Task