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Illicit drug use costs the United States approximately $181 billion every year.
GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.
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.
Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
Everyone has one nostril that is larger than the other.
![A Hall-effect sensor produces a digital on-off voltage signal whether it is used with a blade or a ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_6_25_27_298062068.png)
![(a) The connection required to test a Halleffect sensor. (b) A typical waveform from a Hall-effect ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_7_14_03_29837620.png)