Download Chapter 5 (Populations) Test A

Name______________________________
Class __________________
Chapter 5 Populations
Date ______________
Chapter Test A
Multiple Choice
Write the letter that best answers the question or completes the statement on
the line provided.
____ 1. There are 150 Saguaro cacti plants per square kilometer in a
certain area of Arizona desert. To which population
characteristic does this information refer?
a. growth rate
b. geographic distribution
c. age structure
d. population density
____ 2. What does the range of a population tell you that density does not?
a. the number that live in an area
b. the areas inhabited by a population
c. the births per unit area
d. the deaths per unit area
____ 3. What occurs in a population as it grows?
a. The birthrate becomes higher than the death rate.
b. The birthrate stays the same, and the death rate increases.
c. The birthrate becomes lower than the death rate.
d. The birthrate and the death rate remain the same.
© Pearson Education, Inc. All rights reserved.
____ 4. When individuals in a population reproduce at a constant
rate, it is called
a. logistic growth.
b. growth density.
c. demographic growth.
d. exponential growth.
____ 5. Which are two ways a population can decrease in size?
a. immigration and emigration
b. increased death rate and immigration
c. decreased birthrate and emigration
d. emigration and increased birthrate
____ 6. As resources in a population become less available,
population growth
a. declines rapidly.
b. increases slowly.
c. reaches carrying capacity.
d. enters a phase of exponential growth.
____ 7. Which of the following is not likely to be a limiting factor on
the sea otter population?
a. disease
c. drought
b. competition
d. predation
Chapter 5 Test A 41
Name______________________________
Class __________________
Date ______________
____ 8. Which will reduce competition within a species’ population?
a. fewer individuals
c. fewer resources
b. higher birthrate
d. higher population density
____ 9. If a population grows larger than the carrying capacity of the
environment, the
a. death rate may rise.
c. death rate must fall.
b. birthrate may rise.
d. birthrate must fall.
____10. Which would be least likely to be affected by a densitydependent limiting factor?
a. a small, scattered population
b. a population with a high birthrate
c. a large, dense population
d. a population with a high immigration rate
____11. Which density-dependent factors, other than the
predator/prey relationship, affected the populations of moose
and wolves on Isle Royale?
a. extreme temperatures for the moose and flooding for the
wolves
b. parasitic wasps for the wolves and clear-cut forest for the
moose
c. a hurricane followed by drought for both moose and
wolves
d. food availability for the moose and disease for the wolf
____12. Demographic transition is change from high birthrates and
high death rates to
a. exponential growth.
b. a low birthrate and a low death rate.
c. a low birthrate and a high death rate.
d. indefinite growth.
____14. In Rwanda, there are more young children than teenagers, and
more teenagers than adults. This age structure indicates a
population that
a. has stopped growing.
b. will double in 30 years.
c. has a steady growth rate.
d. will decrease in 30 years.
____15. In countries like India, the human population is growing
a. exponentially.
c. logistically.
b. transitionally.
d. demographically.
42
Chapter 5 Test A
© Pearson Education, Inc. All rights reserved.
____13. About 500 years ago, the world’s population started
a. decreasing.
b. to reach carrying capacity.
c. growing more rapidly.
d. to level off.
Name______________________________
Class __________________
Date ______________
Completion
Complete each statement on the line provided.
16. When an individual moves into a population from a different population, it is called
___________________ .
17. Zero population growth is a characteristic of ___________________ growth.
18. Under conditions of logistic growth, population size will rise and fall around an
average point called a(an) ___________________ .
19. Resource shortages triggered by increasing population size are density___________________ limiting factors.
20. Social and ___________________ factors explain why some countries have high growth
rates while other countries grow slowly or not at all.
Short Answer
In complete sentences, write the answers to the questions on the lines
provided.
21. How does emigration affect population size?
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
22. What is a density-independent limiting factor? Give two or three
examples.
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
23. What kept the human growth rate low before the Industrial
Revolution?
© Pearson Education, Inc. All rights reserved.
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
24. How can a demographer, or scientist who studies demography,
predict how a population will change in the future?
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
25. How does population growth in the United States compare with
that of China and India?
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
Chapter 5 Test A 43
Name______________________________
Class __________________
Date ______________
Using Science Skills
Use the graphs to answer the following
questions on the lines provided.
Graph I shows the curve for a
culture of Paramecium aurelia. Graph II
shows the growth curve for a culture of
Paramecium caudatum, a larger species.
Graph III shows the growth curves of
each species when they are grown
together.
26. Interpreting Data According to
Figure 5-1, which species has the
greater initial growth rate when
they are grown in separate cultures?
_________________________________
27. Interpreting Graphics From Figure
5-1, which species has the greater
growth rate overall when grown
together? Describe the growth curve
of P. caudatum in Graph III.
_________________________________
_________________________________
_________________________________
_________________________________
_________________________________
_________________________________
Figure 5-1
_________________________________
_________________________________________________________________________________
_________________________________________________________________________________
29. Drawing Conclusions What is the most likely explanation for the
decline of the P. caudatum shown in Graph III of Figure 5-1?
_________________________________________________________________________________
_________________________________________________________________________________
30. Drawing Conclusions Are the limiting factors for all cultures in
Figure 5-1 density-dependent or density-independent? Explain.
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
44
Chapter 5 Test A
© Pearson Education, Inc. All rights reserved.
28. Observing What type of population growth curve can be observed
in Graphs I and II of Figure 5-1?
Name______________________________
Class __________________
Date ______________
Essay
Write the answer to each question in the space provided.
31. Discuss four ways population sizes can change.
© Pearson Education, Inc. All rights reserved.
32. Differentiate between exponential and logistic growth.
33. Explain the limiting factors that control population growth.
Chapter 5 Test A 45
Name______________________________
Class __________________
Date ______________
34. Differentiate between density-dependent and density-independent
limiting factors.
35. Sequence the historical events that contributed to the current
human population growth.
© Pearson Education, Inc. All rights reserved.
46
Chapter 5 Test A