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Author Question: In the early years of the U.S.A., newer immigrants were viewed with suspicion. Languages, other than ... (Read 62 times) |
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).