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Author Question: When a football coach cancels a grueling "meat-grinder drill" because the team is performing well, ... (Read 633 times) |
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The FDA recognizes 118 routes of administration.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.