Standardized Test Prep

Understanding Populations Standardized Test Prep

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• Multiple Choice

Multiple Choice

1. What determines the carrying capacity of an environment?

A. growth rates

B. limiting resources

C. natural selection

D. territorial size

Multiple Choice

1. What determines the carrying capacity of an environment?

A. growth rates

B. limiting resources

C. natural selection

D. territorial size

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.

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.

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

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

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

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

Use this table to answer question 5.

5. Which of the interactions listed in the table is harmful to both species?

A. commensalism

B. competition

C. mutualism

D. predation

5. Which of the interactions listed in the table is harmful to both species?

A. commensalism

B. competition

C. mutualism

D. predation

Use this illustration to answer questions 6 and 7.

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.

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.

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

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

Standardized Test Prep

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