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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Vaccines prevent between 2.5 and 4 million deaths every year.

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When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Microinjecting DNA into a fertilized egg Microinjecting DNA into a fertilized egg
Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in
Bug depositing fertilized eggs on a pine needle Bug depositing fertilized eggs on a pine needle
Events in human fertilization. The light micrograph shows a fertilized human oocyte. Events in human fertilization. The light micrograph shows a fertilized human oocyte.
Video: Mendel's pea plant, Pisum sativum experimental

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