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In 1864, the first barbiturate (barbituric acid) was synthesized.

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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Attack systems of pathogenic bacteria. Attack systems of pathogenic bacteria.
Evolution of Nervous Systems Evolution of Nervous Systems
The Systems in Bronfenbrenner’s Ecological Theory The Systems in Bronfenbrenner’s Ecological Theory
Shallow-water systems are highly productive Shallow-water systems are highly productive
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Examples of animal digestive systems. Examples of animal digestive systems.
Video: Phases of mitosis

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