1. Understanding PopulationsStandardized Test Prep Preview Multiple Choice

2. Understanding PopulationsStandardized 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

3. Understanding PopulationsStandardized 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

4. Understanding PopulationsStandardized 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.

5. Understanding PopulationsStandardized 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.

6. Understanding PopulationsStandardized 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

7. Understanding PopulationsStandardized 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

8. Understanding PopulationsStandardized 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

9. Understanding PopulationsStandardized 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

10. Understanding PopulationsStandardized Test Prep Multiple Choice, continued Use this table to answer question 5.

11. Understanding PopulationsStandardized 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

12. Understanding PopulationsStandardized 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

13. Understanding PopulationsStandardized Test Prep Multiple Choice, continued Use this illustration to answer questions 6 and 7.

14. Understanding PopulationsStandardized 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.

15. Understanding PopulationsStandardized 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.

16. Understanding PopulationsStandardized 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

17. Understanding PopulationsStandardized 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