In 1864, the first barbiturate (barbituric acid) was synthesized.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Everyone has one nostril that is larger than the other.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
The four interacting parts of eukaryotic cells.
Mirror Neurons and Speech
Children with autism generally prefer interacting with objects over people.
Biology Teacher
Normal frequency distribution, characterized by a bell-shaped curve
An antigen-presenting dendritic cell (blue) interacting with a T cell (yellow)