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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The horizontal fraction bar was introduced by the Arabs.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
![(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_38_22_1976859.jpeg)
![On the slopes of Chimborazo, a 6,310 m high volcanic peak in the Andes Mountains of Ecuador, Alexand](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_42_32_2066482.jpeg)