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Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Did you know?
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
![A freshly applied autograft. Note that the donor skin has been perforated so that it can be stretche](https://biology-forums.com/gallery/47/medium_14755_16_09_12_6_01_25_8780531.jpeg)
![Oil pressure applied to the locking pin causes the inside of the lifter to freely move inside the ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_3_43_30_29651122.png)
![A DC voltage is applied across the spark plug gap after the plug fires and the circuit can determine ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_6_52_57_29826391.png)