|
|
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
Blood is approximately twice as thick as water because of the cells and other components found in it.
![The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve](https://biology-forums.com/gallery/47/medium_246815_06_04_15_9_49_12_21219513.jpeg)
![Effect of pH on drug absorption: (a) A weak acid such as aspirin (ASA) is in a nonionized form in an ...](https://biology-forums.com/gallery/28/medium_482573_25_04_17_9_15_17_283512215.jpeg)