The human body produces and destroys 15 million blood cells every second.
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Your heart beats over 36 million times a year.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The horizontal fraction bar was introduced by the Arabs.
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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.
Attachment of transmembrane proteins to the cytoskeleton and extracellular matrix of an animal cell.
Brain types
Eysneck Temperment types
(A–B) Two types of canes.
The receptive fields of an on-center cell and an off-center cell.