|
|
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
![The meninges. This figure illustrates the location and structure of each layer of the meninges and t](https://biology-forums.com/gallery/47/medium_14755_27_08_12_4_56_12_8217900.jpeg)
![In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai](https://biology-forums.com/gallery/47/medium_262797_12_08_15_1_46_35_221931656.png)
![Percentage of Foreign-Born Whites and Native Whites of Foreign or Mixed Parentage in Total Populatio](https://biology-forums.com/gallery/47/medium_6_24_08_15_12_36_53_224201087.png)