|
Author Question: The eagle on the emblem of the National FFA Organization represents _____. A) nature B) wildlife ... (Read 18 times) |
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.
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).
There are 60,000 miles of blood vessels in every adult human.
Excessive alcohol use costs the country approximately $235 billion every year.
Approximately 500,000 babies are born each year in the United States to teenage mothers.