People traveled to California during the Gold Rush because they wanted to find gold and get rich.
The California Gold Rush took place from 1848-1857. It was the largest American mass migration with an estimated 300,000 migrants taking part. Gold was recovered from the ground, streams, and rivers bringing in flocks if gold finding hopefuls.
<span>Psychologists perform twin studies in order to determine the extent to which genetics influence intelligence levels. Since identical twins share 100% of their genetics, it follows that their intelligence levels should be quite similar given that intelligence is genetically determined. However, when identical twins are found to have varying intelligence levels, it indicates that external factors (or nurture) play a role in intelligence. Therefore, p</span>sychologists perform twin studies in order to determine the extent to which genetics and non-genetic factors determine intelligence levels.
According to Paul Farmer, an infectious disease physician and Harvard global health professor. The fact is that weak health systems not unprecedented virulence or a previously unknown mode of transmission, are to blame for Ebola's rapid spread.
But the fact is that weak health systems not unprecedented virulence or a previously unknown mode of transmission are to blame for Ebola's rapid spread. Weak health systems are also to blame for the high case-fatality rates in the current pandemic, which is caused by the Zaire strain of the virus.
Viral and epidemiologic data suggest that Ebola virus existed long before these recorded outbreaks occurred. Factors like population growth encroachment into forested areas and direct interaction with wildlife such as bushmeat consumption may have contributed to the spread of the Ebola virus.
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