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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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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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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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Everyone has one nostril that is larger than the other.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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Take a good look at this woman Take a good look at this woman
To help make good electrical contact with the terminals without doing any harm, select the ... To help make good electrical contact with the terminals without doing any harm, select the ...
A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water. A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water.
Good body mechanics when facing the head or foot of the table. A. Head and back in alignment. B. ... Good body mechanics when facing the head or foot of the table. A. Head and back in alignment. B. ...
Older Adults Benefit from Good Nutrition and Physical Activity Older adults Older Adults Benefit from Good Nutrition and Physical Activity Older adults
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

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