← Back Home

Chapters 5-6

35 questions

1. ________ occurs when one organism feeds on the body of, or the energy used by, another organism, usually by living on or in it.

2. Which of the following illustrates a predator-prey relationship?

3. Some prey are able to avoid predation by mimicry. An example of mimicry is when a

4. The relationship formed between organisms that affect each other's evolution is called

5. This interaction benefits one organism, but neither helps nor harms a second organism.

6. One way that species reduce competition for the same resources is by

7. Which of the following is not within the study of population dynamics?

8. Organismal populations may grow, shrink, or remain stable over time. Population change

9. Which of the following is false?

10. Which of the following is true? Exponential growth

11. Species with a capacity for a high rate of increase of ten produce many small offspring and give them little or no parental care. Such species are called ________ species.

12. A volcanic eruption destroyed most of the population of a species of monkey living in the area. The few that survived will now reproduce and rebuild the population, however the resulting population will have a reduced genetic diversity. This scenario describes

13. Examples of density-dependent population limiting factors include all of the following except

14. Skunks have few predators, yet their populations change relatively little from one year to the next. Such a species demonstrates ________ pattern of variation in its population size.

15. Population controls are factors that limit population size for a given environment. Which of the following would be considered a human population control?

16. The following is an example of primary succession.

17. The following is an example of secondary succession.

18. The ability of a living system to be restored through secondary succession after a moderate disturbance is called

19. From the first 2 billion people on planet earth, it took just 50 years to add 2 billion more. The next 2 billion people were added 25 years later. Assuming the growth rate were to remain constant, when might we expect the next 2 billion people?

20. For the past 200 years, human population growth has

21. Human populations have been able to grow at the expense of other species, altering other habitat to meet our needs. One way we have altered the environment is by

22. The sustainable human carrying capacity of the earth is ________ people.

23. A given population has increased in size. An increase in what factor besides birth rate may be directly responsible?

24. The world's total fertility rate, that is, the average number of children born to women in a population during their reproductive years, has been

25. The average number of children that couples in a population must bear to replace themselves is

26. When women have access to education and paid employment outside the home, the total fertility rate decreases.

27. One of the best measures of a society's quality of life is

28. The U.S. life expectancy

29. If the replacement-level fertility rate of 2.1 children per woman were achieved tomorrow, the world's population would

30. Age structure diagrams that indicate rapidly growing populations have the shape of a/an

31. Age structure diagrams may be used to

32. Germany, Bulgaria, and Russia have the following in common:

33. A number of factors that may affect the future world population size are out of our control. Which of the following should not be included in this list?

34. A high birth rate, low death rate, and an increase in population size are all indicative of the ________ stage of the demographic transition.

35. A majority of married women throughout the world use modern birth control.