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Author Question: Carbon dioxide is used in arc welding as a(n) _____. A) shielding gas B) cutting gas C) cooling ... (Read 37 times) |
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
In 1864, the first barbiturate (barbituric acid) was synthesized.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.