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Biology Laboratory Manual, 6/e
Darrell S. Vodopich, Baylor University
Randy Moore, University of Minnesota--Minneapolis

Exercise 21 - Population Growth

Choose the one answer that best answers the question.



1

What is an organism's biotic potential?
A)the number of individuals in a given generation
B)the affects of the environment which prevents an organism from growing exponentially
C)the maximal reproductive capacity if give unlimited resources
D)a stability in the growth of an organism
2

If an organism began with 10 individuals and went through 25 generations, then how many individuals would be in the final generation?
A)3.4 X 108
B)3.4
C)6250
D)3.4 X 107
3

For a population of wolves, which is not an environmental resistance to their population growth?
A)lack of den space
B)lack of prey
C)hunted by humans
D)litter size of only 8-10 pups
4

At what stage during an organism's population growth is the growth at it's highest?
A)lag phase
B)log phase
C)carrying capacity
D)environmental resistance
5

The theoretical growth of an organism is usually ____ the actual growth.
A)smaller than
B)equal to
C)greater than
D)below the biotic potential of
6

Looking at the example of theoretical and actual growth of E. coli bacteria (Table 21.1), at which generation would you think the population had reached its carrying capacity.
A)2
B)4
C)6
D)7
7

If an organism has a population of 600 and in 30 years has a population of 1200, then what is the organism's doubling time?
A)15 years
B)30 years
C)45 years
D)60 years
8

What is the doubling time of the United States in relation to developing countries?
A)much longer
B)about equal
C)much shorter
D)unable to determine
9

In what amount of time will enough people be born to replace everyone in New York City, which has a population of around 8 million?
A)one hour
B)one day
C)one month
D)one year
10

If a population has 545 individuals in its initial generation, how many individuals would be in the final generation after going through 15 generations?
A)1.8
B)1.8 X 107
C)1.2 X 105
D)8175








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