2. TRUE OR FALSE?
TO DETERMINE HOW MANY MEMBERS OF A POPULATION ARE IN A GIVEN AREA, AN ECOLOGIST WOULD STUDY THE POPULATIONS DISPERSION.

3. Define carrying capacity

4. TRUE OR FALSE?
The study of demographics helps to predict changes in the human population.

5. Define habitat fragmentation.

6. Which characteristic is typical of a k-strategist?
a. short life span
b. generally a small organism
c. produces many offspring
d. lengthy parental care

7. TRUE OR FALSE?
The human population growth rate has always increased.

8. The cheetah population was around 100,000 in 1900
The cheetah population was around 100,000 in Today, fewer than 12,000 cheetahs remain. What type of natural resource are cheetahs considered to be?
a. nonrenewable
b. renewable
c. reusable
d. sustainable

9. TRUE OR FALSE?
In many cases, if a renewable resource is not conserved properly it will become a nonrenewable resource.

10. What is genetic diversity?

11. Density, distribution, and growth rate are characteristics used to classify which one of the following?
A. biomes
b. populations
c. limiting factors
d. age structure

12. TRUE OR FALSE?
Because the water cycle recycles fresh water at a relatively slow pace, water is considered a nonrenewable resource.

13. Define population density

14. Define a natural resource.

15. A fruit fly that has a short life span and produces many offspring can be classified into which reproductive strategy?
a. r-strategist
b. k-strategist
c. a carrying-capacity strategist
d. a logistic strategist

16. Young adult male chimpanzees look for mates outside their own population. The males then take the females back to their group. Which of the following occurs in females’ original population?
a. emigration
b. immigration
c. mortality
d. natality

17. What are some ways to sustainably use our resources?

18. What is a demographic transition?

19. How would you define zero population growth?

20. What is likely to be true of a population with an age structure that is pyramid shaped?
a. It is expected to grow slowly in the future.
b. It is expected to decline in population size over time.
c. It has potential for rapid growth in the future.
d. This age structure is characteristic of zero population growth.

21. What type of factor is a density- independent factor?

22. Which event is correlated with the beginning of exponential growth in human population?
a. the start of the Industrial Revolution
b. the invention of agriculture
c. the bubonic plague epidemic
d. the end of the Second World War

23. Define immigration.

24. If the communities in Figure 5-4 were put in order of least to most biological diversity, they would be ____.

25. Which of the following resources can be considered renewable?
a. natural gas
b. quartz
c. uranium
d. wood

26. Which of the following practices can help conserve an area’s biodiversity?
a. biological magnification
b. habitat fragmentation
c. species introduction
d. sustainable usage

27. Which of the following groups of animals has suffered the largest percentage of known extinctions in the last 400 years?
a. amphibians
b. birds
c. invertebrates
d. mammals

28. What type of factor is a density- dependent factor ?