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Author Question: Gregson has been assigned an informative speech for his public speaking class. The general goal of ... (Read 115 times) |
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
There are more bacteria in your mouth than there are people in the world.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
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.