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Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
A toddler's developing motor skills allow the child to exert more independence and control over A toddler's developing motor skills allow the child to exert more independence and control over
Embryonic cells form the placenta Embryonic cells form the placenta
The vehicle emissions control information (VECI) sticker is placed under the hood. The vehicle emissions control information (VECI) sticker is placed under the hood.
Many fuel-control oxygen sensors are located in the exhaust manifold near its outlet so that the ... Many fuel-control oxygen sensors are located in the exhaust manifold near its outlet so that the ...
Write in vertex form by completing the square Write in vertex form by completing the square
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