Chapter 4:
Population Biology
Practice Test
1.
What type of growth is exhibited by an hourly wage?
a.
straight line
b.
exponential
c.
S-curve
d.
expansion pattern
Hint
2.
Competition, aggression, decrease in parental care, decreased fertility, decreased disease resistance and stress may all result from __________.
a.
predation
b.
overcrowding
c.
global warming
d.
increased pollution
Hint
3.
If the rate of population growth remains steady, the graph will appear as __________.
a.
a S-shaped curve
b.
a J-shaped curve
c.
a bell curve
d.
a straight line
Hint
4.
As populations grow individuals tend to compete for __________.
a.
resources
b.
density
c.
independence
d.
stress
Hint
5.
What is the demographic trend in the United States?
a.
increasing death rate
b.
zero growth
c.
increasing birth rate
d.
decreasing fertility
Hint
6.
The change in the size of a population over time is ________.
a.
population growth
b.
exponential growth
c.
ever-increasing growth
d.
linear growth
Hint
7.
Which of the following is a density-dependent factor?
a.
food
b.
wind speed
c.
drought
d.
flood
Hint
8.
Populations that have reached carrying capacity usually have __________.
a.
an S-shaped growth curve
b.
linear growth
c.
increasing population size
d.
a J-shaped growth curve
Hint
9.
Living things are examples of __________.
a.
the carrying capacity
b.
abiotic factors
c.
density independence
d.
biotic factors
Hint
10.
Resource depletion and increasing population cause __________.
a.
community stability
b.
predators to increase
c.
exponential growth
d.
competition
Hint
11.
What can be said about the growth of a country whose age structure graph approximates a triangle with a large base?
a.
it is decreasing
b.
it is increasing slowly
c.
it is stable
d.
it is increasing rapidly
Hint
12.
Movement of individuals into a country is __________.
a.
population degeneration
b.
population impact
c.
immigration
d.
emigration
Hint
13.
The carrying capacity of a population is the highest level at which a population can be __________.
a.
attained
b.
after it crashes
c.
before it crashes
d.
sustained
Hint
14.
Density-dependent factors include factors such as __________, while density-independent factors include factors such as __________.
a.
temperature; floods
b.
temperature; disease
c.
disease; parasites
d.
competition; storms
Hint
15.
Predation is a positive benefit to the population of prey organisms because it tends to keep them below their ___________.
a.
carrying capacity
b.
exponential growth
c.
competition level
d.
sustainable level
Hint
