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Author Question: The earliest stone tools, which have been found in East Africa, are called __________ tools. A. ... (Read 84 times) |
There are 60,000 miles of blood vessels in every adult human.
The longest a person has survived after a heart transplant is 24 years.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.