|
|
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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."
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
![New Yorkers flee from the dust caused by the collapse of the twin towers of the World Trade Center f](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_42_53_22400208.jpeg)
![As cities evolve, so does architecture. This photo is of the Exhibition and Conference Center in ...](https://biology-forums.com/gallery/28/medium_482573_20_04_17_1_39_59_280191583.png)