1. Population Ecology and Biodiversity
Chapter 4 & 5 Test Review

2. Match the definition with the correct term. population density
Match the definition with the correct term. population density dispersion emigration immigration carrying capacity
maximum number of individuals in a species that an environment can support

3. Match the definition with the correct term. population density
Match the definition with the correct term. population density dispersion emigration immigration carrying capacity
number of organisms per unit area of a population

4. individuals moving into a population
Match the definition with the correct term. population density dispersion emigration immigration carrying capacity
individuals moving into a population

5. the pattern of spacing of a population within an area
Match the definition with the correct term. population density dispersion emigration immigration carrying capacity
the pattern of spacing of a population within an area

6. individuals moving away from a population
Match the definition with the correct term. population density dispersion emigration immigration carrying capacity
individuals moving away from a population

7. disappearance of a species from the biosphere
Match the definition with the correct term. demography extinction biodiversity edge effect endemic species
disappearance of a species from the biosphere

8. species that are only found in a specific geographic area
Match the definition with the correct term. demography extinction biodiversity edge effect endemic species
species that are only found in a specific geographic area

9. Match the definition with the correct term. demography. extinction
Match the definition with the correct term. demography extinction biodiversity edge effect endemic species
variety of life in an area, determined by the number of different species in that area

10. Match the definition with the correct term. demography. extinction
Match the definition with the correct term. demography extinction biodiversity edge effect endemic species
different environmental conditions that occur along the boundaries of an ecosystem

11. study of the characteristics of the human population
Match the definition with the correct term. demography extinction biodiversity edge effect endemic species
study of the characteristics of the human population

12. Many different factors can have an impact on the population of a species within an environment. Some of these factors have different effects when the population is small compared to when the population is large. What is the term used to describe these types of factors that work to limit a populations size?
a. density-dependent factors
b. density-independent factors
c. extinction factors
d. coincidental factors

13. Which of the following is not a density-dependent factor that might affect a population?
A. competition for food
B. presence of parasites
C. spread of disease
D. fire destroys a forest

14. What type of diversity is referred to when you look at the number of different species in a community.
A. genetic diversity
B. ecosystem diversity
C. species diversity
D. Mendelian diversity

15. What type of population growth is represented in the graph.
A. exponential population growth
B. zero population growth
C. logistic population growth
D. none of the above

16. C. reproductive structure D. all of the above
The human population is divided into three categories known as pre-reproductive (before age 20) , reproductive (age 20-44), and post-reproductive (age 45+). This is known as the _________ of the population.
A. age structure
B. age classification
C. reproductive structure
D. all of the above

17. Which of the following is true based on the graph above.
A. the iron age saw more growth than the modern age
B. exponential growth began around 4000 B.C.
C. farming caused a sharp population increase
D. exponential growth began around the time of the industrial revolution

18. What is bioremediation?
A. adding natural predators to a degraded ecosystem to control prey populations
B. using living organisms such as plants and fungi to detoxify a polluted area
C. nonnative species that are transported to a new habitat
D. the excessive use of a species that has economic value

19. Look at the chart. Which of the following statements is true?
A. more bird species have been lost than mammal species
B. more mammal species have been lost than invertebrate species
C. birds have lost a higher percentage of species than mammals
D. fish have lost a higher percentage of species than reptiles

20. There are many different threats to biodiversity
There are many different threats to biodiversity. One of them is introduced or invasive species. What are introduced species?
A. the excessive use of a species that has economic value
B. extensive algae growth caused by fertilizers and waste getting into waterways
C. nonnative species that are transported into a new habitat
D. the separation of an ecosystem into small pieces of land

21. Short answer
Define overexploitation and explain how it is a threat to biodiversity.

22. Short answer
Define habitat fragmentation and explain how it is a threat to biodiversity.

23. Animals that are _________ have short life spans and produce many offspring at one time.
A. k-strategists
B. reproducers
C. r-strategists
D. none of the above