|
|
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
![Relaxed ear position of a bored or resting horse. Lower lip is loose, also indicating relaxation. Th](https://biology-forums.com/gallery/47/medium_27605_22_04_12_7_15_54.jpeg)
![If debris gets into an oil pump, the drive or distributor shaft can twist and/or break. When this ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_2_34_12_2960849.png)
![To measure fuel-injector resistance, a technician constructed a short wiring harness with a double ...](https://biology-forums.com/gallery/30/medium_548020_31_05_17_2_37_18_300541356.png)