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Did you know?
Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
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.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
![Water striders serve as a model organism for the study of sexual conflict between males and females.](https://biology-forums.com/gallery/47/medium_33_09_09_11_10_15_38_17251747.jpeg)
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