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Practice Quizzing
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1

Which of the following is NOT true about prokaryotes?
A)The group includes bacteria and the archaea.
B)The cells have no membrane-bound organelles.
C)The cells do not have a membrane-bound nucleus.
D)All of the above.
E)None of the above.
2

Research involving rhodopsin indicates that it is the pigment responsible for the production of tannins, which makes oak leaves unsavory to insects.
A)TRUE
B)FALSE
3

During a recent study conducted in Oregon, the increase in feeding rate of walleye pollock in the dark illustrates a functional response.
4

Diet breadth" is a term used to describe the mix of prey that will maximize the energy intake by a predator under a particular set of circumstances.
A)TRUE
B)FALSE
5

Which of the following terms best describes the difference between the largest and smallest values in a sample of observations?
A)range
B)variation
C)mean
D)standard deviation
6

is calculated by finding the sum of squares and dividing it by the sample size minus one.
7

Standard deviation is calculated by taking the square root of the _________.
A)range
B)sum of squares
C)variance
D)mean
8

Recent studies of plants of the Great Plains indicate that reduced nitrogen increases the ratio.





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