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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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Birds in Love
butterflies love
Paul McCartney - My Love
KEY4050 & Plumb - I Love You
Campsite Dream - I Love Your Smile
YOTTO x Eli & Fur - 'Somebody To Love' (Official Audio) [Odd One Out]
![YOTTO x Eli & Fur - 'Somebody To Love' (Official Audio) [Odd One Out]](https://biology-forums.com/gallery/49/medium_6_07_04_25_8_49_20.jpg)