The dating of artifacts is done by a three age system.
The SA node sends out regular electrical impulses from the top chamber )the atrium) causing it to contract and pump blood into the bottom chamber (the ventricle).
Approximatelt 750,000 teens become daily smokers each year, of which almost <span>250,000 will die from a smoking related disease.
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Answer:
It's actually C. "a culture-bound syndrome . . . cultural relativity"
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