Understanding Populations
Standardized Test Prep
Preview
• Multiple Choice
Standardized Test Prep
Understanding Populations
Standardized Test Prep
Multiple Choice
1. What determines the carrying capacity of an
environment?
A. growth rates
B. limiting resources
C. natural selection
D. territorial size
Understanding Populations
Standardized Test Prep
Multiple Choice
1. What determines the carrying capacity of an
environment?
A. growth rates
B. limiting resources
C. natural selection
D. territorial size
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
2. Which of the following statements can be made about
competition between organisms in a particular
ecosystem?
F. Organisms rarely compete with members of their
own species.
G. Organisms compete directly when they require the
same resources.
H. Organisms only compete when supplies of a
resource are unlimited.
I. Organisms only compete for resources when their
populations are small.
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
2. Which of the following statements can be made about
competition between organisms in a particular
ecosystem?
F. Organisms rarely compete with members of their
own species.
G. Organisms compete directly when they require the
same resources.
H. Organisms only compete when supplies of a
resource are unlimited.
I. Organisms only compete for resources when their
populations are small.
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
3. Which of the following describes a species’ niche?
A. the unique role the species plays in an ecosystem
B. the physical location where the species can be
found on Earth
C. the adaptation of a species population to its
physical environment
D. the maximum number of offspring all members of
that species can produce
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
3. Which of the following describes a species’ niche?
A. the unique role the species plays in an ecosystem
B. the physical location where the species can be
found on Earth
C. the adaptation of a species population to its
physical environment
D. the maximum number of offspring all members of
that species can produce
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
4. Which of the following expressions is used to calculate
the change in population size?
F.
births plus deaths
G. births plus deaths plus population
H. births minus deaths
I.
births minus deaths plus population
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
4. Which of the following expressions is used to calculate
the change in population size?
F.
births plus deaths
G. births plus deaths plus population
H. births minus deaths
I.
births minus deaths plus population
Understanding Populations
Multiple Choice, continued
Use this table to answer question 5.
Standardized Test Prep
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
5. Which of the interactions listed in the table is harmful to
both species?
A. commensalism
B. competition
C. mutualism
D. predation
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
5. Which of the interactions listed in the table is harmful to
both species?
A. commensalism
B. competition
C. mutualism
D. predation
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
Use this illustration to answer questions 6 and 7.
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
6. What happens to population size between the time it
overshoots carrying capacity to when it recovers and
stabilizes?
F.
It remains stable.
G. It declines steadily.
H. It decreases before it stabilizes.
I.
It continues to increase at a steady rate.
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
6. What happens to population size between the time it
overshoots carrying capacity to when it recovers and
stabilizes?
F.
It remains stable.
G. It declines steadily.
H. It decreases before it stabilizes.
I.
It continues to increase at a steady rate.
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
7. If the population size was nearly 2,000 when it overshot
carrying capacity, and 1,500 when it was at its lowest
amount of decline during its recovery, what is the
estimated carrying capacity of the population?
A. 1,600
B. 1,750
C. 1,800
D. 1,950
Understanding Populations
Standardized Test Prep
Multiple Choice, continued
7. If the population size was nearly 2,000 when it overshot
carrying capacity, and 1,500 when it was at its lowest
amount of decline during its recovery, what is the
estimated carrying capacity of the population?
A. 1,600
B. 1,750
C. 1,800
D. 1,950