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Author Question: What are schemas, and why are they often adaptive? What will be an ideal ... (Read 30 times) |
There are 60,000 miles of blood vessels in every adult human.
The longest a person has survived after a heart transplant is 24 years.
Everyone has one nostril that is larger than the other.
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.
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.