Standardized Test Prep

Multiple Choice

1. The movement of individuals into an area is called

   1. immigration.

   2. emigration.

   3. population growth rate.

   4. population density.

2. All other things being equal, the size of a population will decrease if

   1. birthrate exceeds the death rate.

   2. immigration rate exceeds emigration rate.

   3. death rate exceeds birthrate.

   4. birthrate equals death rate.

3. Which of the following is NOT an example of a density-dependent limiting factor?

   1. natural disaster

   2. predator

   3. competition

   4. disease

4. A population like that of the United States with an age structure of roughly equal numbers in each of the age groups can be predicted to

   1. grow rapidly over a 30-year-period and then stabilize.

   2. grow little for a generation and then grow rapidly.

   3. fall slowly and steadily over many decades.

   4. show slow and steady growth for some time into the future.

5. In the presence of unlimited resources and in the absence of disease and predation, what would probably happen to a bacterial population?

   1. logistic growth

   2. exponential growth

   3. endangerment

   4. extinction

6. Which of the following statements best describes human population growth?

   1. The growth rate has remained constant over time.

   2. Growth continues to increase at the same rate.

   3. Growth has been exponential in the last few hundred years.

   4. Birthrate equals death rate.

7. Which of the following refers to when a population's birthrate equals its death rate?

   1. limiting factor

   2. carrying capacity

   3. exponential growth

   4. population density

Questions 8–9

Use the graph below to answer the following questions.

d

8. Which time interval(s) in the graph shows exponential growth?

   1. D and E

   2. A and B

   3. C and D

   4. E only

9. Which time interval(s) in the graph depicts the effects of limiting factors on the population?

   1. A only

   2. A and B

   3. C, D, and E

   4. C and D

Open-Ended Response

10. When a nonnative species is imported into a new ecosystem, the population sometimes runs wild. Explain why this might be the case.

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