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Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

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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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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Electron microscopy of mRNA-template DNA hybrids shows that introns are spliced Electron microscopy of mRNA-template DNA hybrids shows that introns are spliced
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ... A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
Comparison of DNA polymerase structures with primer and template bound Comparison of DNA polymerase structures with primer and template bound
Growth in Open Economies Growth in Open Economies
Comparison of open and closed circulatory systems. Comparison of open and closed circulatory systems.
Transcription of open and covered promoters Transcription of open and covered promoters
Video: Hydrogen bonds - role in the body

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