A study of a cohort of 1,000 animals showed a 90 percent death rate per individual in the first year, 10 percent the
second year, and 5 percent the third year. This population's survivorship is _____.
a. type I
b. type II
c. type III
d. type I the first year and type II in years two and three
e. type I the first year, type II the second year, and type III the third year
ANSWER: c
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