In 1864, the first barbiturate (barbituric acid) was synthesized.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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There are more bacteria in your mouth than there are people in the world.
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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
Looking at Cells
black swallower
Sirius and Its White Dwarf Companion
The black-and-white colobus is an African colobine.
Contrasting eukaryotic and prokaryotic cells in size and complexity