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Practice Quizzing
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1

and are the two major contributing factors which led to the reduction in the whooping crane populations in the 1940s.
2

Dutch elm disease is an example of a biotic factor that influences populations in a density-dependent fashion.
A)TRUE
B)FALSE
3

The _______ test is used to judge how well an observed frequency distribution matches the expected.
A)Sinervo
B)chi-square
C)null hypothesis
D)degree of freedom
4

The is (are) equal to sample size minus 1.
5

Recent studies of the gray whale indicate that the recent drop in the whale population is a response to unnatural amounts of toxic chemicals, such as PCBs and heavy metals.
A)TRUE
B)FALSE
6

The major cause of the dip in human population growth rate between 1958 and 1961 was _______.
A)the Vietnam War
B)the invention and distribution of the birth control pill
C)a famine in China
D)civil war in Uganda
7

The most populated countries in the world are and .
8

The human population is currently growing exponentially and the rate of growth has risen steeply in the last few decades.
A)TRUE
B)FALSE





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