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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