Download 1. When plotted on a graph, the population size of mice in a field

Name: ____________________________________
Class: _____________
Date: _____________
Lesson Assessment: Growth of Populations
1. When plotted on a graph, the population size of mice in a field over time shows a J shaped curve. What
might this indicate?
a) There is an abundance of food.
b) The population is decreasing.
c) Predators of mice are increasing.
d) The carrying capacity has been reached.
2. This equation describes logistic, or S shaped, population growth. In the equation, N is the population size,
r is a constant, K is the carrying capacity, and G is the population growth rate. When would G, the growth
rate, be equal to zero?
a) when N = r
b) when N = 1
c) when K = N
d) when K = 0
3. What will be the effect of a lower mortality rate in a population?
a) It will cause the population growth rate to increase.
b) It will cause the birth rate to increase.
c) It will cause the birth rate to decrease.
d) It will cause a decrease in the population growth rate.
4. Predation can be a ______.
a) size indicator
b) limiting factor
c) part of the population cycle
d) growth potential factor
PAGE 1
Name: ____________________________________
Class: _____________
Date: _____________
Lesson Assessment: Growth of Populations
5. Population growth rate is related to _____.
a) birth rate minus immigration rate
b) death rate minus birth rate
c) birth rate minus death rate
d) birth rate plus death rate
6. The number of organisms of one species that an environment can support indefinitely is called _____.
a) limiting growth capacity
b) habitat capacity
c) carrying capacity
d) holding capacity
7. If you were a biologist studying a population of small mammals in an area and could measure the birth rate
(b), death rate (d), immigration rate (i), and emigration rate (e), how would you express the growth rate (G)
of the study population?
a) G = b d e + i
b) G = b + d e + i
c) G = b d + e i
d) G = d b e + i
8. As a population begins to level off, the graph of its growth over time begins to resemble _____.
a) a letter J
b) a left shifted letter S
c) a left shifted letter J
d) a letter S
PAGE 2
Name: ____________________________________
Class: _____________
Date: _____________
Lesson Assessment: Growth of Populations
9. What is the value indicated by the asterisk in the graph of resource limited population growth?
a) carrying capacity
b) resource level
c) population growth
d) population size
10. Most density independent factors are _____.
a) insignificant to actual growth
b) abiotic
c) difficult for scientists to measure
d) biotic
PAGE 3
ANSWER KEY
1. a
2. c
3. a
4. b
5. c
6. c
ANSWER KEY Page 1
7. a
8. d
9. a
10. b