During the 1990s what was the average number of deaths in the U.S. tied to influenza?
a. 5,000
b 12,000
c. 36,000
d. 150,000
e. 550,000
Question 2
The 1918 Spanish flu pandemic
a. killed more people in the world in the time it lasted than any other known disease epidemic in a similar period of time.
b. killed the elderly and infants almost exclusively.
c. was largely limited to Spain but killed 50 percent of their population in six months.
d. was deadly in Europe, the U.S., and Africa but left other areas untouched.
e. All of the above are correct.
Types of variation in chromosome number.
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